Republican Christine O'Donnell returned to political debate on Thursday to slam GOP presidential front-runner Donald TrumpDonald TrumpBiden: I regret not running for president De Blasio blames Trump for 'dynamic of hatred' in US Dem to Trump: 'You truly are an evil man' MORE.

"I have no desire to get in the fray. Now it looks like he's going to be the nominee. I can't sit back anymore. I can't hold my tongue," O'Donnell said during an interview on CNN.

"He did nothing to liberate the middle class from political correctness until he decided to run for president," O'Donnell added during her interview with Brooke Baldwin.

O'Donnell is known in political circles for a stunning upset during the Tea Party wave of 2010 when she defeated establishment favorite and former Rep. Mike Castle in the GOP Senate primary in Delaware.

She was famous for declaring in a campaign ad that she was "not a witch" after suggestions that she dabbled in witchcraft in her youth. She ended up losing by wide margins to Sen. Chris CoonsChris CoonsSenators introduce new Iran sanctions Gorsuch sails on day one, but real test is Tuesday Live coverage: Supreme Court nominee hearings begin MORE (D).

"He's not actually doing anything except inciting riots," she said of Trump on Wednesday, emphasizing words "have consequences."