Question: News article:

Mitt Romney — seen Feb. 16 behind the wheel of a tractor during a tour of a dairy in Ogden, Utah — has had a rocky relationship with President Donald Trump. | Rick Bowmer/AP Photo Trump endorses Romney for Utah Senate seat 
  
 President Donald Trump endorsed Mitt Romney in the Utah Senate race on Monday evening, a surprise move that added another layer of intrigue to an already complex relationship between the two men. 
  
 Trump’s announcement on Twitter came three days after Romney launched his bid for the seat that longtime GOP Sen. Orrin Hatch is retiring from. 
  
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 “.@MittRomney has announced he is running for the Senate from the wonderful State of Utah,” Trump wrote on Twitter. “He will make a great Senator and worthy successor to @OrrinHatch, and has my full support and endorsement!” 
  
 Romney, the 2012 GOP nominee, responded with a tweet of his own. 
  
 “Thank you Mr. President for the support,” he wrote. “I hope that over the course of the campaign I also earn the support and endorsement of the people of Utah.” 
  
 By endorsing Romney, the president is lining up behind an all-but-certain winner. Romney is likely to have only marginal opposition during his campaign. 
  
 Trump and Romney have long had a tense relationship. During the 2016 presidential race, Romney emerged as the de-facto leader of the “Never Trump” movement, deriding then-candidate Trump as a “phony” and imploring the party to nominate someone else. Trump hit back, labeling Romney a “stone-cold loser.” 
  
 The friction eased after the 2016 election, when Trump considered Romney to be his secretary of state. 
  
 But over the course of the next year, Romney demonstrated a willingness to criticize the president, including over his handling of the violence in Charlottesville, Virginia. Trump, meanwhile, led an ultimately unsuccessful campaign to convince Hatch to run for reelection — an effort partly aimed at keeping Romney from seeking the seat. 
  
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 After Hatch announced his retirement in January, Trump phoned Romney and wished him the best of luck, though he did not commit to supporting him. 
  
 Romney’s decision to run for Senate has led to widespread speculation about his future, and whether he may use his new perch to be a thorn in the president’s side. But, for now, those close to Romney say he is intent on running a Utah-focused campaign and largely staying mum about Trump. 
  
 That does not mean he will ignore him completely, however. 
  
 In his announcement video, Romney delivered what many considered to be an indirect jab at the president. 
  
 "Utah welcomes legal immigrants from around the world,” he said. “Washington sends immigrants a message of exclusion." 
  
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What is a shorter version of the above article?
Answer: – Mitt Romney and President Trump have traded their share of insults in the past, but they appear ready to let bygones be bygones: Trump endorsed Romney's Senate run Monday night, tweeting that the 2012 Republican nominee "will make a great Senator and worthy successor" to Sen. Orrin Hatch and has his "full support and endorsement," the Salt Lake Tribune reports. In response, Romney tweeted: "Thank you Mr. President for the support. I hope that over the course of the campaign I also earn the support and endorsement of the people of Utah." Romney said in 2016 that Trump was a "phony" and he wouldn't vote for him, and Trump reportedly urged the 83-year-old Hatch to seek another term to keep Romney out of the Senate. Trump and Romney appeared to have buried the hatchet after the 2016 election but there were a few clashes in 2017, with Romney criticizing Trump on issues including immigration and Trump accusing Romney of choking "like a dog" in 2012, Politico reports. Romney, who is expected to easily win the GOP nomination in Utah, didn't attack Trump when he formally announced the bid last week, though he did make it clear that he has a different view of immigration. "Utah welcomes legal immigrants from around the world," he said. "Washington sends immigrants a message of exclusion." (During his campaign, Trump said Romney would have "dropped to his knees" for his endorsement.)