Fifty-five House Democrats signed a letter Tuesday asking President Trump to fire Sebastian Gorka, a deputy assistant in the White House.

"As members of the U.S. Congress who care deeply about fighting anti-Semitism at home and abroad, we urge you to immediately dismiss senior White House counterterrorism adviser Sebastian Gorka," the letter states.

The letter accuses Gorka of having ties to "former prominent members of the anti-Semitic Jobbik party in Hungary."

Over the weekend, the Washington Examiner reported that Gorka will soon accept a position outside the White House.

Gorka's new role will deal with the "war of ideas" involved in countering radical Islamic extremism, a senior administration official said, and will entail an appointment to a federal agency.

He has served for months on the Strategic Initiatives Group, an internal organization within the White House, and as a national security adviser. His exit from the White House comes amid increased speculation that a reported lack of a security clearance prevented him from fully performing in his job.

Gorka isn't gone yet — he was spotted on the White House grounds Tuesday.

Sarah Westwood contributed