Joe Walsh announces Republican challenge to Trump

Former Rep. Joe WalshJoe WalshGeorgia GOP submits only Trump's name for primary Michigan GOP attempting to have Trump be only Republican candidate on ballot Weld files to run in GOP presidential primary in New Hampshire MORE (R-Ill.) on Sunday announced he would mount a primary challenge to President TrumpDonald John TrumpPence: It's not a "foregone conclusion" that lawmakers impeach Trump FBI identifies Pensacola shooter as Saudi Royal Saudi Air Force second lieutenant Trump calls Warren 'Pocahontas,' knocks wealth tax MORE.

The conservative radio host unveiled his campaign on ABC's "This Week."

"We've got a guy in the White House who is unfit, completely unfit to be president, and it stuns me that nobody stepped up, nobody in the Republican Party stepped up, because I'll tell you what, George, everybody believes in the Republican party, everybody believes that he's unfit," Walsh told ABC's George StephanopoulosGeorge Robert StephanopoulosImpeachment can't wait Biden reverses, says marijuana isn't a gateway drug Democrats look to next steps in impeachment MORE. "He lies every time he opens his mouth." 

Walsh was elected to the House in 2010 as part of the Tea Party wave and served one term. He began as a strong supporter of President Trump but over the past year has emerged as a fierce critic of the president. On Sunday, he apologized for tweets Stephanopoulos described as racist and sexist as well as his "personal" criticism of former President Obama, acknowledging the role it played in creating today's politics.

"I helped create Trump. There's not doubt about that. The personal, ugly politics," he said. "I regret that. And I'm sorry for that. And now we've got a guy in the White House, that's all he does."

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When asked about Trump's high approval rating among Republicans, Walsh said GOP voters had no alternative, adding that many of his former colleagues in the House feel the same way.
 
"I'm running because he's unfit. Somebody needs to step up, and there needs to be an alternative," Walsh said. "The country is sick of this guy's tantrum. He's a child. Again, the litany. He lies every time he opens his mouth. Look at what's happened this week. The president of the United States is tweeting us into a recession."
 
After being asked about invoking the 25th Amendment to remove Trump from office, he added, "We've never had a situation like this. ... You can't believe a word he says. He's nuts. He's erratic. He's cruel. He stokes bigotry. He's incompetent. He doesn't know what he's doing. George, he's a narcissist. The only thing he cares about is Trump."
 
Walsh in a tweet announcing his campaign said the U.S. "can't take four more years of Donald Trump."
 
"It won't be easy, but bravery is never easy," he added. 

This breaking news report was last updated at 9:43 a.m.