Question: Write a summary based on this article:

WASHINGTON — President Obama on Sunday downplayed the altercations between Chinese and US officials over press access on the tarmac a day earlier, saying he “wouldn’t over-crank the significance” of the bizarre presidential welcome. 
  
 As Air Force Once landed in Hangzhou on Saturday, the Chinese wanted the US press to leave and shouted at White House staff as Obama disembarked from his plane for the G-20 summit. But the White House insisted it was their plane and their rules. The Chinese, who had restricted press with a blue rope to block coverage of Obama’s official welcome, shouted back: “This is our country.” 
  
 Asked about the kerfuffle Sunday, Obama said it’s not the first time there’s been “friction” about press and security access during a foreign visit because “other counties may not insist on” the same level of press access the US demands. 
  
 “We think it’s important that the press have access to the work that we’re doing, that they have the ability to answer questions. And we don’t leave our values and ideals behind when we take these trips. It can cause some friction. It’s not the first time it’s happened. It doesn’t just happen in China, it happens in other countries where we travel,” Obama said at a press conference in Hangzhou, China, with British Prime Minister Theresa May. 
  
 After Obama arrived, the tensions between Chinese and American officials continued to flare. A Chinese official attempted to block national security adviser Susan Rice from walking to the presidential motorcade on the tarmac, screaming at the top White House official. A Secret Service agent had to intervene. 
  
 Later, a group of Obama’s staffers arriving as part of the advance team at the Hangzhou’s Westlake State House were blocked from entering at a security checkpoint. For 15 minutes, the US officials and the Chinese got into heated arguments about access and one security guard looked like he was going to throw a punch. “You don’t push people. No one gave you the right to touch or push anyone around,” one official assisting the White House yelled in Chinese at the security guards, according to pool reports. 
  
 Obama, however, said the tensions are to be expected. 
  
 “I wouldn’t over-crank the significance of it, because, as I said, this is not the first time that these things happened,” the president said. “And it doesn’t just happen here.” 
  
 Separately, in a taped interview on CNN that aired Sunday, Obama said Donald Trump has been able to woo voters who feel left behind, but he feels optimistic that younger people will reject Trump’s positions of intolerance. 
  
 “He’s been able to appeal to a certain group of folks who feel left out or are worried about the rapidity of demographic change, social change, who, in some cases, have very legitimate concerns around the economy and feeling left behind,” Obama told Fareed Zakaria of the GOP nominee. “… But that’s not the majority of America. And if you talk to younger people, the next generation of Americans, they … completely reject the kinds of positions that he’s taking.” 
  
 Obama said Trump must be taken “seriously,” but he’s “optimistic” Trump’s views won’t win. 
  
 “I think that any time we hear intolerance, any time that we hear policy measures that are contrary to our values, banning certain classes of people because of who they are or what they look like, what faith they practice, then we have to be pretty hard about saying no to that,” Obama said. “And I think that America will do that this time, as well. So overall, I’m optimistic. But, you know, I think we have to pay close attention to what’s going on.” ||||| "The one thing I will say is we don’t make apologies for pushing a little bit harder when it comes to press access, and that’s been the case from my very first state visit here," Obama said. | Getty Obama downplays tarmac altercation in China 
  
 President Barack Obama "wouldn't overcrank the significance" of the altercations between Chinese and White House officials over press access that greeted Air Force One on Saturday after it landed in Hangzhou, China, for the G20 summit. 
  
 At a news conference Sunday with British Prime Minister Theresa May, Obama said this is not the first time there have been issues with security and press access. The president said the U.S. provides access to the press pool that "other countries may not insist on." 
  
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 "We don't leave our values and ideals behind when we take these trips," he said. "It can cause some friction. It's not the first time it's happened. It doesn't just happen in China; it happens in other countries where we travel." 
  
 After the arrival of Obama and White House officials, Chinese and White House officials had several disagreements, such as whether the press pool could be on the tarmac for the president's arrival. 
  
 Later that day, Chinese officials tried to limit the number to 10 American journalists for Obama's and Chinese President Xi Jinping's talks. Eventually, all members of the press were granted access. 
  
 Obama said at the news conference that the United States has "a much bigger footprint than a lot of other countries," adding the U.S. travels with a lot of planes, helicopters, cars and officials. He added it "may feel a little bit much" to a host country. 
  
 "The one thing I will say is we don’t make apologies for pushing a little bit harder when it comes to press access, and that’s been the case from my very first state visit here," Obama said. "And we don’t always get everything that we’d like to see, but we think it’s important for us to at least stand up for those values." |||||

Summary:
Answer: – President Obama's trip to China got off to an awkward start on Saturday after tensions between Chinese and American staffers all but turned physical. But on Sunday, President Obama didn't think much of the brouhaha. Don't "overcrank the significance," he said at a press conference, per Politico. Some of the friction occurred when Chinese officials attempted to curb movement of the US press on the airport tarmac, while American officials insisted the media was part of their entourage and were entitled to be there. "We don’t leave our values and ideals behind when we take these trips," said Obama, referring to press access. "It can cause some friction. It’s not the first time it’s happened. It doesn’t just happen in China, it happens in other countries where we travel." Other disputes flared when one Chinese official tried to block National Security Adviser Susan Rice from walking to the presidential motorcade on the tarmac and, later, when the Chinese tried (unsuccessfully) to limit the number of journalists given access to talks between Obama and Chinese President Xi Jinping, notes the New York Post. "The one thing I will say is we don’t make apologies for pushing a little bit harder when it comes to press access, and that’s been the case from my very first state visit here," Obama said. "And we don’t always get everything that we’d like to see, but we think it’s important for us to at least stand up for those values."