https://www.vox.com/policy-and-politics/2018/2/20/17031658/mitt-romney-trump-endorsement
"Observers online were quick to point out that Romney’s thanks and endorsement acceptance is quite a turnaround, given that he was a prominent anti-Trump voice in the 2016 election. Romney conjectured that Trump was hiding a “bombshell of unusual size” in his tax returns and called him a “phony” and a “fraud"."
