Buttigieg on Trump tweets: 'I don't care'

Democratic presidential candidate Pete ButtigiegPeter (Pete) Paul ButtigiegPress: Another billionaire need not apply Saagar Enjeti dismisses Warren, Klobuchar claims of sexism Warren on winning over male voters: I was told to 'smile more' MORE dismissed President TrumpDonald John TrumpFive landmark moments of testimony to Congress Lindsey Graham basks in the impeachment spotlight Democrats sharpen their message on impeachment MORE's tweets mocking him on Sunday just hours after the president again took aim at the South Bend, Ind., mayor. 

"I don't care," Buttigieg told Fox News's Chris WallaceChristopher (Chris) WallaceRepublicans, Democrats brace for first public testimony in impeachment inquiry Intelligence panel Democrat: 'I think we will end up calling' some witnesses on GOP list Intelligence panel Republican: 'How we treat this whistleblower will impact whistleblowers in the future' MORE at a town hall in Claremont, N.H.

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Buttigieg went on to say that Trump's Twitter account is "a great way to get the attention of the media." 

The mayor said Trump's online behavior is "grotesque," adding that "it is the nature of grotesque things that you can't look away."

His comments came after Trump took aim at Fox News for giving him airtime and compared him to a character from Mad Magazine. 

"Hard to believe that @FoxNews is wasting airtime on Mayor Pete, as Chris Wallace likes to call him," Trump tweeted.    

Trump has also taken aim at other Democratic primary candidates, particularly former Vice President Joe BidenJoe BidenFive landmark moments of testimony to Congress Democrats sharpen their message on impeachment Biden: 'I'm more of a Democrat from my shoe sole to my ears' than anyone else running MORE, calling him "Sleepy Joe."