Biden praises Buttigieg for criticizing GOP attacks: 'That's a good man'

Former Vice President Joe BidenJoe BidenButtigieg campaign claims 'irregularities' in Nevada caucuses Poll: Sanders leads 2020 Democratic field with 28 percent, followed by Warren and Biden More than 6 in 10 expect Trump to be reelected: poll MORE on Sunday commended his fellow 2020 Democratic presidential candidate, South Bend, Ind., Mayor Pete ButtigiegPeter (Pete) Paul ButtigiegButtigieg campaign claims 'irregularities' in Nevada caucuses Poll: Sanders leads 2020 Democratic field with 28 percent, followed by Warren and Biden 9-year-old asks Buttigieg how to be strong and tell people he is gay too MORE, for pushing back against unproven allegations of corruption against his son Hunter.

“I’m a friend of Pete Buttigieg,” Biden said as he opened his remarks at the United Food and Commercial Workers union presidential forum in Iowa Sunday, taking the stage shortly after the South Bend mayor.

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“By the way, he’s a really decent guy. I turned on the television this morning and he was defending my family against these outrageous, lying ads of the president of the United States of America. That’s a good man.”

In remarks to CNN’s Jake TapperJacob (Jake) Paul TapperMurphy: No concerns with Sanders on gun policy Dean says he's not worried Sanders would harm down-ballot Democratic candidates Democrats ramp up attacks on opponents in final pitch before New Hampshire MORE on “State of the Union” Sunday morning, Buttigieg said Hunter Biden was held to different standards than President TrumpDonald John TrumpSchiff blasts Trump for making 'false claims' about Russia intel: 'You've betrayed America. Again.' Poll: Sanders leads 2020 Democratic field with 28 percent, followed by Warren and Biden More than 6 in 10 expect Trump to be reelected: poll MORE’s own children, contrasting Biden stepping down from the board of a Chinese company without formal allegations of wrongdoing “just to make sure there’s not even the appearance of a conflict of interest.”

Meanwhile, Buttigieg told Tapper, “the president of the United States is a walking conflict of interest. You want to talk about family members, in the White House right now you’ve got Ivanka TrumpIvana (Ivanka) Marie TrumpManufacturers group kicks off campaign to close the industry's skills gap Fed chief issues stark warning to Congress on deficits Rally crowd chants '46' for Donald Trump Jr. MORE benefiting from patents from the Chinese, you’ve got the president’s son-in-law texting with Mohamed bin Salman, the crown prince of Saudi Arabia.”

Buttigieg is not Biden’s first rival for the nomination to defend him against Trump’s allegations. Sen. Elizabeth WarrenElizabeth Ann WarrenPoll: Sanders leads 2020 Democratic field with 28 percent, followed by Warren and Biden More than 6 in 10 expect Trump to be reelected: poll Sanders has wide leads in two of three battleground states: survey MORE (D-Mass.) has blasted Facebook in recent days for refusing to remove ads from the Trump campaign featuring baseless allegations about Hunter Biden’s work in Ukraine. Trump’s attempts to pressure Ukraine to investigate the Bidens have led to an impeachment inquiry in the House.