Hasn't he been caught lying under oath? Shouldn't he step down for that?
Maybe in years gone by, but ever since 54* Senators decided that perjury wasn't an impeachable offence the bar is probably rather higher.
*Yes, the vote was 45-55, but one of those 55 was Specter, who voted "not proven" rather than "not guilty." Rehnquist directed that it be considered a "not guilty" vote.