Washington, D.C. ? Idaho Sen. Larry Craig’s political support eroded by the hour on Wednesday as fellow Republicans in Congress called for him to resign and party leaders pushed him unceremoniously from senior committee posts.

The White House expressed disappointment, too – and nary a word of support for the 62-year-old lawmaker, who pleaded guilty earlier this month to a charge stemming from an undercover police operation in an airport men’s room.

Craig “represents the Republican Party,” said Rep. Pete Hoekstra of Michigan, the first in a steadily lengthening list of GOP members of Congress to urge a resignation.

Craig said Tuesday he had committed no wrongdoing and shouldn’t have pleaded guilty. He said he had only recently retained a lawyer to advise him in the case.

Sens. John McCain of Arizona and Norm Coleman of Minnesota joined Hoekstra in urging Craig to step down, as did Rep. Jeff Miller of Florida.