Rep. Pete Hoekstra is on Studio B with Shepard Smith right now calling for Sen. Larry Craig to resign.

Here's an AP write-up:

BOISE (AP) -- A conservative House member from Michigan became the first lawmaker to call for Sen. Larry Craig's resignation on Wednesday, and the White House expressed disappointment in the case of the Idaho senator caught in a men's room undercover police operation.

GOP Rep. Pete Hoekstra said Craig "represents the Republican party," and called for his resignation "as his conduct throughout this matter has been inappropriate for a U.S. senator."

Too early to say (for now) whether others will take up Hoekstra's call, although, with the Senate GOP urging an investigation, we're seeing Republicans rushing to get out in front of the story.

UPDATE: Now CNN is reporting that John McCain said Craig should resign.

"I believe that he plead guilty, and he had the opportunity to plead innocent," McCain said. "So, I think he should resign. My opinion is that when you plead guilty to a crime you shouldn't serve."