Roughly one month ago, Sen. Mitt Romney seemed like a very real possibility. The former Massachusetts governor was reportedly seriously considering running for Senate in his new home state of Utah, under the condition that the state’s longtime senator, Orrin Hatch, decided not to run for re-election in 2018. And indeed, Hatch was reportedly telling friends he wouldn’t. The 83-year-old Republican had even blessed Romney as his “perfect” replacement. Romney, 70, is viewed as a virtual lock to win if he chooses to run for the Senate seat (and Hatch doesn’t), with hypothetical polls showing he’d beat his potential Democratic opponent in the heavily Republican, heavily Mormon state by an increasingly huge margin. However, it seems Romney’s possible bid has another opponent: his old frenemy Donald Trump. As the president visited Utah on Monday, he also was embarking on a behind-the-scenes campaign to convince Hatch not to retire, according to Politico. “Orrin, I really hope you will consider running again,” Trump reportedly told the seven-term senator in a phone call in October. Hatch, who is flying to Utah and back Monday with Trump on Air Force One, has been one of the president’s most loyal and outspoken supporters in the Senate. Thank you @SenOrrinHatch. Let’s continue MAKING AMERICA GREAT AGAIN! — Donald J. Trump (@realDonaldTrump) November 30, 2017 Trump also encouraged Hatch to seek re-election in March, before the prospect of Romney’s potential Senate run had even cropped up. During their event Monday at the Utah State Capitol, Trump said he hoped the Utahn would stay in the Senate “for a very long time to come.” But according to Politico, it’s not all about Hatch’s unwavering support. “There’s widespread concern within the White House that Romney in the Senate could make Trump’s life difficult,” reported Politico’s Alex Isenstadt, noting Romney’s vociferous condemnations of Trump during the 2016 presidential campaign. Such concern apparently exists outside the White House as well. According to the Washington Examiner, former Trump adviser and Breitbart chairman Steve Bannon — who was previously recruiting