(CNN) According to Meghan McCain, "it shouldn't take a rocket scientist" to know who she is voting for in the next presidential election.

"There's one man who has made pain in my life a living hell and another man who has literally shepherded me through the grief process," McCain said Wednesday night during "Watch What Happens Live with Andy Cohen."

Former Vice President Joe Biden is the presumptive Democratic nominee, and McCain has said in the past that she talks to him "all the time."

In contrast, Meghan McCain and her family have had a contentious relationship with President Donald Trump, who is a Republican like her dad was.

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