evidence: This tweet was posted the day before Donald Trump became the Republican party's presumptive nominee for President of the United States on 4 May 2016. Prior to this date, Graham, who also ran for president but ended his campaign in December 2015 before the primaries, frequently voiced opinions critical of Donald Trump. [...] Graham struck a more conciliatory tone with Trump after the latter won the Republican party's nomination, and he eventually came out in support of Trump after the election. [...] While most Republicans fell in line before the 2016 election, Lindsey Graham -- along with fellow senators Mike Lee, Ben Sasse, John McCain, and Rob Portman -- was a high-profile NeverTrumper on Election Day. "My party has gone batshit crazy," Graham said in a February 2016 speech about Trump. Graham told Fox News that Trump is "a kook. I think he's crazy. I think he's unfit to be president."