House Republicans voted Wednesday to formalize an impeachment inquiry into U.S. President Joe Biden as their investigation reaches a critical juncture and right-wing pressure grows, Paralel.Az reports citing CNN.

In a 221-212 vote, all GOP members supported the resolution to formalize the inquiry – including Rep. Ken Buck of Colorado, who had said earlier this week he was leaning against it.

Up until this point, House Republicans had not had enough votes to legitimize their ongoing inquiry with a full chamber vote. The probe has struggled to uncover wrongdoing by the president, which is why it hasn’t garnered the unified support of the full GOP conference.

House Oversight Chairman James Comer and Judiciary Chairman Jim Jordan took a victory lap after vote, overcoming the lack of support for the inquiry when it was first unilaterally launched in September under then-Speaker Kevin McCarthy.

“We are very pleased with the vote today,” Comer, a Kentucky Republican, told reporters. “I think that sent a message loud and clear to the White House.”

Jordan said the vote would “help us get those key individuals in to speak to us in a more timely fashion.”