The Office of Congressional Ethics, which has investigated Oklahoma Congressman Markwayne Mullin, emerged intact Tuesday after an attempt by House Republicans to disrupt it.

Mullin is one of six lawmakers who remain under investigation following complaints initially reviewed by the office. He was investigated over allegations that he exceeded outside income requirements.

After voting against the panel Monday night, House Republicans reversed course and gave it a reprieve following criticism from President-elect Donald Trump, who said Congress would be better served to work on domestic priorities.

Mullin and Reps. Tom Cole and Steve Russell were all critical of the ethics office on Tuesday.