Jeff Weaver, former campaign manager for Sen. Bernie Sanders Bernie SandersButtigieg stands in as Pence for Harris's debate practice Bernie Sanders warns of 'nightmare scenario' if Trump refuses election results Harris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda MORE's (I-Vt.) 2016 presidential campaign, said on Sunday that no one at the White House is loyal to President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE.

“The problem they have over at the White House, the reason why they have leaks, is that there is nobody over there who has loyalty to the principal,” Weaver said on CNN’s “State of the Union.” “He stands for nothing, they’re all grifters, they’re giving the country away to the rich and the powerful.

Weaver went on to charge the White House with lacking "cohesion."

"You didn’t see this kind of leaking in the Bush White House … in the Obama White House because people over there had a common purpose,” he continued. “There is no common purpose over there. It is a feeding frenzy.”

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Weaver’s comments come after a recent leak from the White House revealed dismissive comments from an aide about Sen. John McCain John Sidney McCainCindy McCain endorses Biden: He's only candidate 'who stands up for our values' Biden says Cindy McCain will endorse him Biden's six best bets in 2016 Trump states MORE (R-Ariz.). The Hill reported that special assistant Kelly Sadler disregarded McCain's opposition toward Trump's CIA pick Gina Haspel by saying that his opinion didn't matter because he was "dying anyway."

The White House has repeatedly dodged questions about the comment and has not offered a public apology. Sadler has reportedly apologized to Meghan McCain, the senator's daughter, over her comments.

Weaver said the tone of disrespect manifested against McCain is set “at the very top” by the president.

He added that the White House owes an apology to McCain and to “all the other service members the president has denigrated over the course of his campaign as president of the U.S.”