Trump reignited his feud with Fox News for hosting a live event with Pete Buttigieg, prompting thousands of supporters to boo his favorite network

CBS

President Donald Trump speaking at a rally in Pennsylvania on May 21.

• Donald Trump continued to prosecute his grudge against Fox News for giving Pete Buttigieg a platform.
• At a rally Monday night in Pennsylvania, Trump said there is: "Something strange going on at Fox, folks. Something very strange!" The crowd booed in response.
• Trump was unhappy with Fox for broadcasting Buttigieg speaking with voters in Claremont, New Hampshire, on Sunday.
• Just before the event on Sunday, Trump tweeted that Fox was "wasting airtime" and should ignore Democrats in order to cover him more.
• Buttigieg was asked about Trump's tweets on air, and replied: "The tweets are - I don't care."
• Visit Business Insider's homepage for more stories.

At a rally in Pennsylvania Monday night, President Donald Trump made it clear that he's still holding a grudge against Fox News for giving airtime to Democratic rival Pete Buttigieg.

Trump continued the feud on-stage, making several jibes at his favorite news network, and prompting a chorus of boos at Fox's expense from the large crowd.

It followed tweets on Sunday in which Trump said Fox was "wasting airtime" by showing the Buttigieg event.

Trump told supporters in Montoursville that "something strange" was affecting Fox. He mentioned Buttigieg in particular, whom he again compared to Mad magazine cartoon character Alfred E. Neuman:

"Last night I watched Alfred E. Neuman. What's going on with Fox, by the way? What's going on there?"

"They're putting more Democrats on then you have Republicans. Something strange going on at Fox, folks. Something very strange!"

Read more: Paul Rudd played an unrelatable Pete Buttigieg visiting 'The View' on 'SNL'

"Did you see this guy [Buttigieg] last night? I didn't wanna watch but you've always got to watch the competition - if you call it that."

Reuters

Donald Trump looks at supporters before boarding Air Force One after addressing a Trump 2020 re-election rally in Montoursville, Pennsylvania.

"He was knocking the hell out of Fox! And Fox put him on. Somebody going to have to explain the whole Fox deal to me," Trump told the Montoursville crowd.

Fox also broadcast the Trump rally, including his criticism of the network. When Trump attacked Fox, boos erupted from the crowd. 

Fox News

Pete Buttigieg speaking at the town hall in Claremont, NH, on Sunday.

Buttigieg had used part of his town hall in Claremont to call out Fox hosts Tucker Carlson and Laura Ingraham for their coverage of the Mexico border migrant crisis. (Neither were at the event.)

He chastised Carlson for "saying immigrants make America dirty" and Ingraham for "comparing detention centers with children in cages to summer camps."

Read more: 'Boot-EDGE-EDGE': Trump tries to pronounce 2020 Democratic candidate Pete Buttigieg's name at Florida rally

During the broadcast Wallace asked Buttigieg about Trump's Twitter outburst.

Fox News

Pete Buttigieg speaking to Chris Wallace on Fox News on Sunday.

"The tweets are - I don't care," Buttigieg replied.

Buttigieg conceded it's "hard for any one to look away," when Trump starts tweeting, adding "it is the nature of grotesque things that you can't look away."

When he finished, Buttigieg got a standing ovation from the New Hampshire crowd.