MSNBC’s “Morning Joe” host Joe Scarborough lashed out at First Daughter Ivanka Trump on Wednesday morning after she mentioned working alongside Chief of Staff John Kelly. “You will cause your father to fail,” Scarborough warned.

Scarborough mocked a tweet Ivanka recently sent that said, “Looking forward to serving alongside John Kelly as we work for the American people. General Kelly is a true American hero.”

Kelly, the newly appointed chief of staff, needs some space, according to Scarborough, who didn’t appreciate the way Ivanka worded her message and doesn’t want her working “alongside” the general.

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“The only way this works is everybody reports to General Kelly,” he said, “Sons, daughters, son-in-laws, everybody, friends, acquaintances, they all have to go through General Kelly if you want the White House to work.”

Scarborough continued: “I am going to be working alongside the chief of staff? No you’re not. Not if this White House is to function, not if you care about what’s in Donald Trump’s best interests, not if you care about what’s in this country’s best interests. You will not, in the office, work alongside the Chief of Staff or you will cause your father to fail. It’s that simple. If you want Donald Trump to succeed, you will get out of the way.”

Scarborough said he likes the First Daughter and “this is not personal against Ivanka Trump,” but called her tweet “repulsive” and “repugnant.”

“It illustrates exactly what has hurt this White House over the last six months,” he said.

Check out the video above.