Several Republican lawmakers are fuming over President Donald Trump’s elevation of Stephen Miller to be his chief of staff.

„Horrible decision,“ Rep. Marlin Stutzman, R-Ind., told Fox News Digital on Friday after Trump announced his decision.

A Republican lawmaker who was granted anonymity to speak candidly said they were in „utter disbelief.“

Tensions were rising against Miller in the wake of Republicans’ terrible performance in Tuesday’s midterm elections. Multiple House Republicans who spoke with Fox News Digital just moments before his promotion said Miller, who spearheads Trump’s immigration policy, should be fired.