President Donald Trump turned on Fox News on Sunday as he slammed two of its reporters, saying they have "even less understanding" of the fight over his border wall than "Fake News CNN and NBC." The tweet tagged reporters John Roberts and Gillian Turner after their segment on the fight for funds during the government shutdown.

"Never thought I’d say this but I think [John Roberts] and [Gillian Turner] have even less understanding of the Wall negotiations than the folks at FAKE NEWS CNN & NBC!" Trump tweeted, adding: "Look to final results! Don’t know how my poll numbers are so good, especially up 19% with Hispanics?" He was referring to a poll published earlier this month that found 50 percent of Latino adults approved of Trump's job as president, up from 31 percent in December.

In a second tweet, Trump added: “After all that I have done for the Military, our great Veterans, Judges (99), Justices (2), Tax & Regulation Cuts, the Economy, Energy, Trade & MUCH MORE, does anybody really think I won’t build the WALL? Done more in first two years than any President! MAKE AMERICA GREAT AGAIN!”

It, however, remains unclear as to what specific coverage Trump was referring to that he found problematic. Roberts filled in for Fox News anchor Chris Wallace on "Fox News Sunday." Trump has seemingly favored Fox News and the media outlet has been spared from his claims of “fake news.”

Roberts, a veteran White House correspondent who covered the beat earlier in his career for CBS News, has been Fox News' chief White House correspondent since early 2017. He has also been previously part of CNN.

Turner, who joined Fox News as a contributor in 2014 and currently working as a Washington Correspondent, has previously worked in the National Security Council under Presidents George W Bush and Barack Obama, according to her Twitter bio.

The comments from Trump come just a day after he signed a continuing resolution to temporarily reopen the government following a 35-day shutdown, the longest in U.S. history. However, if no agreement is reached in the border wall funding then it could lead to another government shutdown, which according to Trump is "certainly an option," the Wall Street Journal reported Sunday.

The shutdown had left 800,000 federal workers without pay, with some having to scramble to cover meals and bills. On Sunday, Trump placed the odds at “less than 50-50” for a border wall-funding deal, hinting he wouldn't likely accept less than his requested $5.7 billion in this round of negotiations.