Actor and comedian Tom Arnold claimed that the woman who was first to accuse Sen. Al Franken, D-Minn., of sexually assaulting her was "coached."

In a series of tweets Wednesday night, Arnold said that Los Angeles-based radio broadcaster Leeann Tweeden's allegations were the result of a political attack involving longtime Trump confidante Roger Stone.

Update: Al Franken resigns on the Senate floor, but admits no wrongdoing

"I’m disappointed with my friend Leeann Tweedon [sic]," he said. "Her partner at KABC John Phillips is a Roger Stone pal & they coached her for weeks to bring Al Franken down. I’d hoped she’d use her voice to speak out for all women again predators like Roy Moore & Donald Trump but she’s a birther."

John Phillips is a CNN political commentator and right-leaning radio talk show host at the same station, KABC, as Tweeden.

Phillips denied that he was involved with Tweeden's decision to come out public with her accusations in November.

"Hey Arnie, first of all your friend’s name is spelled 'Leeann Tweeden,'" he replied to Arnold. "Second, we never talked about it before she went public. Third, I think ur a great comic and were fantastic on #Roseanne, but @therealroseanne was the genius on that show."

Tweeden also released a statement in mid-November saying that neither she nor any of her managers or colleagues at KABC "coordinated with any group, campaign or individuals outside of the news industry" when she decided to go public with her story.

In a video he posted online after Arnold's tweets, Roger Stone also denied the charge.

In another tweet, Arnold said that Tweeden's allegations were about "political manipulation." He called it a "fraud" and said KABC should lose its license for promoting it.

Tweeden in early November released a 2006 photo showing Franken with his hands on her breasts while she was asleep. The two were on a USO tour in the Middle East. She said Franken had aggressively kissed her while the two were practicing a comedic skit that they were going to perform for troops.

Since then, multiple women have publicly said that Franken groped their behinds or kissed them. Franken has apologized, he said he never intended to do anything inappropriate, and said he doesn't recall any of the incidents.

Most Senate Democrats have called for his resignation and he said he will make an announcement Thursday.