President Trump and Tennessee Sen. Bob Corker have all but engaged in a game of fisticuffs. On Tuesday, the soon-to-be-retired Republican senator told the “Today” show that he hopes the president stays away from the tax reform debate on Capitol Hill, as he believed Trump’s involvement ruined plans to repeal and replace Obamacare. This did not sit well with the president, who then took to Twitter to blast Corker over the Iran nuclear deal and being incompetent. It’s only gotten uglier between the two, but one must ask, was it always this way?

This video explains their feud: