Aide to President-elect Donald Trump urged President Obama on Sunday to tell fellow Democrats to stop questioning Trump’s legitimacy

 Aide to President-elect Donald Trump urged President Obama on Sunday to tell fellow Democrats to stop questioning Trump’s legitimacy — and rejected comparisons to Trump’s own well-publicized doubts about Obama’s eligibility to serve.

A statement from incoming White House Chief of Staff Reince Priebus came after a prominent lawmaker and civil rights activist, Rep. John Lewis (D-Ga.), said Trump was not a “legitimate president” and more than a dozen fellow Democratic lawmakers announced that they would not attend Trump’s inauguration.

Speaking on ABC’s Tv  show

“This Week,” Priebus acknowledged Lewis’s “historic contribution to civil rights and voting rights” but said his doubts about Trump’s legitimacy are “insanity” and “incredibly disappointing.”

“I think President Obama should step up,” he said, praising the cooperation from the White House on other transition issues. “I think the administration can do a lot of good by telling folks that are on the Republican side of the aisle: Look, we may have lost the election on the Democratic side, but it’s time to come together.”

Vice President-elect Mike Pence separately criticized Lewis on Sunday for questioning Trump’s legitimacy in interviews on Fox and CBS, calling his remarks “deeply disappointing.” He also defended Trump’s recent tweets attacking Lewis, saying Trump “has the right to defend himself.”

“I truly do believe this is a time when the American people should be celebrating the peaceful transition of power,” Pence said in a “Fox News Sunday” interview. “I hope that John Lewis, and some others who have joined his plans to take a pass on the inauguration, will rethink that.”

Many Democrats have bristled at the GOP calls to quietly accept Trump’s presidency, pointing to the president-elect’s prominent role in promoting the false “birther” movement to question whether Obama was born in the United States. Trump refused to unequivocally accept Obama’s status as a natural-born U.S. citizen until September — less than two months before Election Day — and has never apologized for his role in spreading doubts.