Hillary ClintonHillary Diane Rodham ClintonAs Buttigieg rises, Biden is still the target Harris rips Gabbard over Fox appearances during Obama years Steyer, Gabbard and Yang shut out of early minutes of Democratic debate MORE's comments about Donald TrumpDonald John TrumpFive takeaways from the Democratic debate As Buttigieg rises, Biden is still the target Leading Democrats largely pull punches at debate MORE's supporters are proof that she is falling apart, former Speaker Newt Gingrich (R-Ga.) said on Sunday. 

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"She just made a statement in which she lumped together millions of Americans," Gingrich said on "Fox News Sunday," referring to Clinton's remark that "half" of Trump supporters fall into a "basket of deplorables." 

"Hillary is beginning to fall apart," said Gingrich, an adviser to Trump, the Republican presidential nominee. 

Clinton, the Democratic presidential nominee, said Saturday that she regrets calling "half" of Trump supporters deplorable, calling it a "grossly generalistic" comment. 

But Rep. Xavier BecerraXavier BecerraOvernight Health Care: Democratic group to only endorse AG candidates who back abortion rights | Protect Our Care launches seven-figure ad buy to boost vulnerable Dems | California sues Juul California sues Juul for allegedly marketing to young people Overnight Energy: House Science Committee hits EPA with subpoenas | California sues EPA over Trump revoking emissions waiver | Interior disbands board that floated privatization at national parks MORE (D-Calif.) defended Clinton on the Fox show Sunday, saying it's clear she's willing to own up to her mistakes, unlike Trump. 

"It's clear there's a least one candidate in this race who's willing to say 'I regret a remark I made,' " Becerra said.