President Donald Trump humorously reflected on his complicated relationship with the late Sen. Lindsey Graham by jokingly resharing the senator’s number during his eulogy Tuesday afternoon.

The two men were first competitors in the 2016 presidential election before Graham became a top Capitol Hill ally for Trump. But the intense battle for the White House more than a decade ago resulted in Trump sharing Graham’s number during a 2015 rally after the senator called him a “jackass.”