House Speaker Mike Johnson signaled Saturday that he plans to tee up a formal vote on the impeachment inquiry into President Joe Biden, calling it a “necessary step.”

“We’re being stonewalled by the White House, because they’re preventing at least two to three DOJ witnesses from coming forward, a former White House counsel, the national archives ... the White House has withheld thousands of pages of evidence,” Johnson said in an interview on Fox News.

“I think it’s something we have to do at this juncture,” Johnson added.

The speaker’s comments came after several Republicans predicted Friday that a vote to formalize the impeachment inquiry would come before the House breaks for December recess.

The Biden administration has argued that the impeachment inquiry is illegitimate since it has not yet been formalized by a House vote. Such a vote is not technically required, but has been used in the past to legitimize the process.