Former Rep. Joe Walsh (R-Ill.), who announced on Sunday that he would challenge President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE in the GOP primary, said that invoking the 25th Amendment and removing Trump from office "should be looked at."

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ABC's George Stephanopoulos asked Walsh during an appearance on "This Week" about a tweet from another Republican presidential candidate, former Massachusetts Gov. William Weld (R), that mentioned the 25th Amendment, which provides procedures for replacing a president in the case of death, removal, resignation or incapacitation.

"It should be looked at," Walsh said. "George, we've never had a situation like this. You can't believe a word he says. And again, I don't care your politics. That should concern you. 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 added. "He doesn't give a damn about America. He doesn't care about the border."

"It should be looked at," Joe Walsh says when asked if the 25th Amendment should be invoked



"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," Walsh says about Pres. Trump https://t.co/bLWbG7aCAU pic.twitter.com/WOfunIizo4 — This Week (@ThisWeekABC) August 25, 2019

Walsh, a conservative radio host, 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.