Question: Write a summary based on this article:

Tweet with a location 
  
 You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more ||||| Washington (CNN) Iranian President Hassan Rouhani issued a challenge to President Donald Trump on Monday, saying the Islamic Republic would welcome talks with the US "right now." 
  
 "I don't have preconditions. If the US government is willing, let's start right now," Rouhani said during an interview that aired on state television late Monday local time, just hours before the US renewed sanctions on Iran. "If there is sincerity, Iran has always welcomed dialogue and negotiations," Rouhani said. 
  
 Trump's national security adviser John Bolton, when asked about the offer by CNN's Jake Tapper, dismissed it as possible "propaganda." 
  
 "Let's see what really comes of it or whether it's just more propaganda," Bolton said, adding that Trump has been "consistent" that he would be willing to negotiate with regimes such as North Korea and Iran. 
  
 "If the Iranians are really willing to come and talk about all of their malign behavior in the region and around the world, I think they'd find the President willing to do it," Bolton said. 
  
 But the Iranian President expressed concern that Trump is the unreliable one, pointing out that the US President has backed out of previous dialogue with Tehran as well as other international agreements. 
  
 'The coming Congress elections' 
  
 "The person who is claiming to be willing to negotiate today has withdrawn from all international commitments, from Paris Agreement (on climate change) to its business commitments with other countries," Rouhani said. 
  
 He indicated that Iran would want the US to scale back sanctions before any talks could begin. "If somebody puts a knife in its opponent or enemy's arm and says we want to negotiate, the answer is that they must first pull out the knife and then come to the negotiation table," Rouhani said. He added that "these sanctions are targeting Iranian children and people." 
  
 Rouhani also suggested that the Trump administration is ramping up sanctions and rhetoric on Iran in part for domestic consumption as November's midterm elections draw near. 
  
 "I believe that they want to wage a psychological war and create skepticism in the Iranian people to be able to use it in the coming Congress elections," Rouhani said. "So Trump's remarks are aimed at taking advantage of them in Congress elections." 
  
 Rouhani also sought to downplay the impact of newly reimposed US sanctions announced by the Trump administration on Monday -- reiterating his unspoken theme that it is the US, not Iran, that finds itself increasingly isolated. 
  
 "They will exert pressure on us and cause pain, but we will certainly come out of the end of this healthier," he said about the penalties that went back into effect at 12:01am ET Tuesday. 
  
 "I think if in unison, if we work together, we will make America regret this action very quickly. If we work together, the world will understand and America will understand that these sanctions are not effective," Rouhani added. 
  
 Specifically, Rouhani said China and Russia have indicated they will not abide by US sanctions despite Trump's threat of "severe consequences" for those who continue to trade with Iran. 
  
 "Last month I was in Europe, conducted talks with China," Rouhani said. "Their promise: They will ignore the American sanctions." 
  
 "China is our biggest trading partner. China and Russia stated clearly they will stand with the framework of our agreement," he said. 
  
 Monday's announcement by the US covers the first of two rounds of sanctions the US is unilaterally reimposing as a result of leaving the Iran nuclear deal, formally known as the Joint Comprehensive Plan of Action. 
  
 Rouhani also mentioned that when a French company pulled out of a gas project it had signed on to, China immediately stepped in to fill that void. "Under current conditions, Asian countries (are of) utmost importance to us," he said. 
  
 The sanctions that went into effect Tuesday cover the purchase or acquisition of US dollars by the Iranian government; trade in gold or other precious metals; the direct and indirect sale, supply or transfer to or from Iran of graphite, raw or semi-finished metals such as aluminum, steels and coal; as well as significant transactions of the Iranian currency; and the country's auto sector. 
  
 The other signatories to the nuclear deal, including the European Union, Russia and China, are sticking with the accord. In a statement Monday, the EU, the UK, France and Germany said they "deeply regret" the US action. The EU announced it would take legal steps to protect European companies "doing legitimate business in Iran." ||||| Donald Trump has warned America’s trading partners that anyone who does business with Iran will not be doing business with the US, after his administration reimposed blanket sanctions. 
  
 EU acts to protect firms from Donald Trump's sanctions against Iran Read more 
  
 The US president described the new sanctions, which hit Iran’s access to dollars, gold and precious metals, as “the most biting ever imposed”. 
  
 “In November they ratchet up to yet another level,” he tweeted. “Anyone doing business with Iran will NOT be doing business with the United States. I am asking for WORLD PEACE, nothing less!” 
  
  
  
 Within hours of the sanctions taking effect, the German carmaker Daimler, which announced a joint venture in Iran last year, said it was halting its business activities in the country. 
  
 The punitive measures came into force in the early hours of Tuesday, and follow Trump’s decision in May to renege on the landmark 2015 deal to curtail Iran’s nuclear ambitions. 
  
  
  
 The sanctions also target a range of industries, including Iran’s carmaking sector, and will be followed by a set of additional and even more stringent measures by 4 November, including an embargo on the import of Iranian oil and sanctions on its banking sector. 
  
 Trump’s latest comments appear aimed at the EU, which is attempting to protect European businesses from the sanctions and has vowed to safeguard firms. 
  
 Companies have been instructed that they should not comply with demands from the White House for them to drop all business with Iran. Those who decide to pull out because of US sanctions will need to be granted authorisation from the European commission, without which they face the risk of being sued by EU member states. 
  
  
  
 “This morning the EU’s updated ‘blocking statute’ entered into force to mitigate the impact of the reimposed US sanctions on the interests of EU companies doing legitimate business in Iran,” a European commission spokesman said. 
  
 The UK Foreign Office minister Alastair Burt told the BBC that the “Americans have really not got this right”. He said it was a commercial decision for companies whether to stay in Iran, but that Britain believed the nuclear deal was important “not only to the region’s security but the world’s security”. 
  
 The Trump administration said on Monday it was not particularly concerned by the EU decision and that the US strategy was designed to apply maximum pressure on Tehran. Ultimately, the US administration wants a new deal that it says will address “the totality of the Iranian threat”. 
  
 Iranians have been anxious about the return of sanctions, which will compound the country’s economic woes. Its currency has been sent into a tailspin in recent months, fuelling street protests over economic grievances, a lack of social and political freedoms, and growing environmental challenges. Some analysts fear the country is on an economic and political precipice. 
  
  
  
 “There’s a sense of anguish in Iranian society – everyone is worried and waiting,” said Sadegh Zibakalam, a professor of politics at Tehran University. 
  
  
  
 “There is no hope that the situation will get better. People think that in the best-case scenario, it won’t get worse. Among the youth you see a huge tendency to leave the country,” he said. 
  
 Timeline Trump's rhetoric on Iran Show Hide 'Nuclear holocaust' "They are going to be such a wealthy, such a powerful nation, they're going to have nuclear weapons," the Republican presidential frontrunner says. "They are going to take over parts of the world that you wouldn't believe and I think it's going to lead to nuclear holocaust." 'Dismantle' the agreement Trump says his "number one priority" is to dismantle the nuclear agreement. "This deal is catastrophic for Israel, for America, for the whole of the Middle East," he says. Iran 'playing with fire' The White House signals a tougher stance towards Iran, condemning a recent missile test and declaring America is putting the Islamic republic "on notice" following its "malign actions". Trump tweets: "Iran is playing with fire – they don't appreciate how 'kind' President Obama was to them. Not me!" 'Isolate' Iran Trump calls on all countries to "isolate" Iran, in a speech in Riyadh. "From Lebanon to Iraq to Yemen, Iran funds, arms and trains terrorists, militias and other extremist groups that spread destruction and chaos across the region," he declares. 'Rogue state' Trump says the nuclear accord is "an embarrassment to the United States". He tells the UN general assembly that Iran's government turned a "wealthy country with a rich history and culture into an economically depleted rogue state". 'Brutal, corrupt' regime Trump says it is "time for change" in Iran, after days of deadly protests against the government in Tehran. A day later he denounces the "brutal and corrupt" regime. Trump tears up deal Trump pulls the US out of the nuclear pact. Describing the deal as "defective at its core," he says: "Today, we have definitive proof that this Iranian promise was a lie. Any nation that helps Iran in its quest for nuclear weapons could also be strongly sanctioned by the United States." 'NEVER, EVER THREATEN THE UNITED STATES' Iran's president, Hassan Rouhani, tells the US it should not "play with the lion's tail" and warns that any conflict with Iran would be the "mother of all wars". Trump responds with an all-caps Twitter tirade: "NEVER, EVER THREATEN THE UNITED STATES AGAIN OR YOU WILL SUFFER CONSEQUENCES THE LIKES OF WHICH FEW THROUGHOUT HISTORY HAVE EVER SUFFERED BEFORE." 'Open' Trump says he is open to a new Iran deal, while confirming a return to sanctions. "I remain open to reaching a more comprehensive deal that addresses the full range of the regime's malign activities, including its ballistic missile program and its support for terrorism," he says in a statement. 
  
 On Monday night, Iran’s president, Hassan Rouhani, dismissed the new round of sanctions as “psychological warfare” designed to help Trump’s allies in the upcoming mid-term elections. 
  
 He reassured Iranians that his government was able to stave off pressure from the US, but said it was only possible if different factions within the country showed unity. “Our system is stable, we’re all standing together,” he said. 
  
  
  
 Iran’s foreign minister, Mohammad Javad Zarif, said on Monday that enemies were pulling out all the stops to target “Iran’s existence”, pledging that his country “will overcome this period of hardship”. 
  
 The head of the German Association of Chambers of Commerce said German businesses were already “in retreat” from Iran amid fears that legal banking channels between the countries were crumbling under US pressure. 
  
  
  
 “It’s important that the EU and the German government work to find funding channels,” said Martin Wansleben, who speaks for more than 3 million German entrepreneurs, in a statement. “As well as the financial damage there is also the threat of losing trust in Iran.” 
  
 Last week the US ambassador to Germany, Richard Grenell, persuaded the German government to stop a cash transfer of €300m (£268m) from Hamburg to Tehran via the Europäisch-Iranische Handelsbank. 
  
 German firms were among the first to take advantage of the opening up of the Iranian market following the Iran deal. Last year German exports to Iran jumped by 16% and were valued at nearly €3bn. But uncertainty over the future of the deal is reversing that trend, Wansleben said, with German exports to Iran down 4% in the first five months of 2018. 
  
 Facebook Twitter Pinterest A carpet seller at a bazaar in Tehran. Photograph: Anadolu Agency/Getty Images 
  
 Rouhani’s administration is scrambling to mitigate the impact of sanctions and their effect on the plummeting value of the national currency by easing foreign exchange rules. 
  
 Internally, many prominent Iranians believe the pressure from the US is mainly intended to provoke regime change. The reformist ex-president Mohammad Khatami, one of the most popular politicians inside Iran but who is currently sidelined, was quoted by local media as saying that efforts to engineer regime change would prove futile so long as people believed in reform. 
  
  
  
 Khatami has set out 15 suggestions to Iranian leaders to bring the country out of the political deadlock. His suggestions include the release of all political prisoners, and establishment of a free atmosphere for political activities. 
  
 Some names have been changed to protect identities 
  
  |||||
Answer: – President Trump issued another warning in regard to Tehran on Tuesday, but this time it's directed at nations outside Iran. "Anyone doing business with Iran will NOT be doing business with the United States," Trump tweeted. "I am asking for WORLD PEACE, nothing less!" The message comes as the first round of US sanctions goes back into effect on Iran following Trump's decision to withdraw from the 2015 nuclear arms accord. As the Guardian reports, the warning seems to be aimed mainly at the European Union, which opposes the sanctions. In fact, the EU has sought to protect member nations who continue to do "legitimate business" with Tehran. Trump calls the sanctions "the most biting" ever imposed and noted that they "ratchet up to yet another level" in November. Iran's president, meanwhile, tells CNN the US is engaging in "psychological warfare" to sow divisions within Iran, though Hassan Rouhani predicted the sanctions would end up isolating America, not Iran. In addition to EU states, Rouhani said China and Russia would similarly continue conducting business with Iran. However, Rouhani also said he is open to talks with Trump immediately, though he suggested that the sanctions must end first. "If somebody puts a knife in its opponent or enemy's arm and says we want to negotiate, the answer is that they must first pull out the knife and then come to the negotiation table." (Secretary of State Mike Pompeo previously outlined what the US wants.)