Republican Rep. Tom Cole of Oklahoma, a deputy whip who has frequently defended Trump in the past, now says he “won’t defend anyone who obstructs justice,” according to CNBC’s John Harwood.

GOP Rep Tom Cole (OK) to me: "While I'm no Comey fan, I won't defend anyone who obstructs justice. time for Comey to appear before Congress" — John Harwood (@JohnJHarwood) May 17, 2017

Cole, often considered a bellwether for Republican House members, went to bat for Trump just weeks ago — after Republicans’ first push to overhaul health care laws collapsed. “This is not a failure of leadership; it’s a failure of follow-ship,” he said at the time.

But the Oklahoman expressed alarm at Trump’s praise for President Andrew Jackson earlier this month. And after Trump fired FBI Director James Comey, the congressman wrote that the agency needed to be led by “a person of unquestioned character and completely divorced from partisan politics.”

Some legal analysts think that Trump may have obstructed justice if he pressured Comey to end an FBI investigation into former national security adviser Mike Flynn, as the fired director’s memo suggests.