Fox News host Sean Hannity suggested that it is only a matter of time until one Republican senator crosses the aisle and joins the Democratic Party.

"Attention Irredeemable Deplorable twitter peeps. Should we start a pool on when @LindseyGrahamSC officially becomes a democrat?" Hannity tweeted Saturday.

Hannity chided the South Carolina lawmaker after he had said he was "very worried" about President Trump's allegations that President Obama ordered his campaign headquarters be wiretapped.

Graham also told attendees at a town hall on Saturday that the claims, if true, "would be the biggest political scandal since Watergate."

"It's my job as a United States senator to get to the bottom of this. I promise you I will," Graham told the group.