Mark Salter, senior advisor to Republican presidential candidate, Sen., John McCain, stands behind the senator in 2008. | AP Photo Former McCain adviser: I'm with Hillary

It has come to this: A former senior adviser for John McCain's 2008 presidential campaign expressed his frustration with the state of the race and suggested Tuesday that he would vote for Democratic front-runner Hillary Clinton over increasingly likely Republican nominee Donald Trump.

"[T]he GOP is going to nominate for President a guy who reads the National Enquirer and thinks it's on the level," Mark Salter tweeted Tuesday. "I'm with her."


Salter's tweet followed Trump calling into Fox News earlier in the morning and espousing a conspiracy theory that Rafael Cruz, the father of rival Ted Cruz, was with Lee Harvey Oswald before he assassinated President John F. Kennedy.

“I mean, what was he doing — what was he doing with Lee Harvey Oswald shortly before the death? Before the shooting?” Trump said. “It’s horrible.”

Cruz reacted with fury, lacing into Trump as "utterly amoral,” “a serial philanderer,” “a pathological liar,” and referring to comments the front-runner made years ago to Howard Stern in referring to his avoidance of venereal disease as his "personal Vietnam."

Later in the afternoon, Salter retweeted an article from The Washington Post's Chris Cillizza expounding upon Cruz's outburst, asking the media why it was fixating on Cruz's reaction rather than Trump's initial accusation.

Should we really focus on Cruz' cynicism today or on likely GOP nom accusing rival's dad of assassinating JFK? https://t.co/TOMY07ZgmG — Mark Salter (@MarkSalter55) May 3, 2016