FILE - In this Nov. 19, 2016, file photo, President-elect Donald Trump and Mitt Romney shake hands as Romney leaves the Trump National Golf Club Bedminster in Bedminster, N.J. Romney and Trump exchanged harsh criticisms of one another during the 2016 presidential campaign but also have a history of being willing to sit down with each other when mutually beneficial. Romney's announcement that he's running for the U.S. Senate seat in Utah creates the potential for future battles, or even deal-making. (AP Photo/Carolyn Kaster, File)