Up early Tuesday morning, President Donald Trump fired off several tweets referring to his ongoing feud with NFL players protesting during the national anthem.

Trump escalated his tiff with the football league by suggesting the government nix the NFL’s tax breaks.

Why is the NFL getting massive tax breaks while at the same time disrespecting our Anthem, Flag and Country? Change tax law! — Donald J. Trump (@realDonaldTrump) October 10, 2017

The NFL gave up its tax exempt status in 2015, leaving it unclear which tax breaks Trump would be looking to eliminate. The league does see tax breaks when building stadiums, but those are granted by local governments, not the federal government.

Trump also went after Jemele Hill, the ESPN anchor recently suspended from the network for tweets about the owner of the Dallas Cowboys.

With Jemele Hill at the mike, it is no wonder ESPN ratings have "tanked," in fact, tanked so badly it is the talk of the industry! — Donald J. Trump (@realDonaldTrump) October 10, 2017

Monday night, Trump defended Cowboys owner Jerry Jones, who said recently that he would not allow any player who kneels during the national anthem to play.

A big salute to Jerry Jones, owner of the Dallas Cowboys, who will BENCH players who disrespect our Flag."Stand for Anthem or sit for game!" — Donald J. Trump (@realDonaldTrump) October 10, 2017

Trump’s renewed interest in the NFL and players’ protests came after Vice President Mike Pence walked out on a football game over the weekend when players kneeled for the national anthem.