Former White House communications director Anthony Scaramucci has used his first television interview since his sacking to claim there are plotters inside the White House looking to oust US President Donald Trump.

"What happens in Washington ... is the President is not a representative of the political establishment class, so for whatever reason the people have made a decision that they want to eject him," he told George Stephanopoulos on This Week on ABC News on Sunday.

"I think there are elements inside of Washington, also inclusive in the White House, that are not necessarily abetting the President's interests or his agenda."

The interview with Stephanopoulos was Scaramucci's first since he was sacked 11 days into his White House job.