WASHINGTON — Sen. Al Franken apologized Monday to voters, aides and “everyone who has counted on me to be a champion for women” as the Minnesota Democrat fought to bolster his support with his first Capitol public appearance since being drawn into a wave of sexual harassment accusations buffeting Congress.

Franken spoke as lawmakers began returning from an extraordinary weeklong Thanksgiving break that saw sexually tinged problems engulf two other legislators as well: Reps. John Conyers, D-Mich., and Joe Barton, R-Texas. Those revelations were on top of allegations that Alabama Republican Senate candidate Roy Moore sexually assaulted a 14-year-old girl and sought romantic relationships with other teenagers when he was in his 30s four decades ago, which he has denied.

With harassment charges recently bringing down big names in the worlds of entertainment and journalism, Congress was adding widespread complaints about how it handles such incidents to its pile of year-end work.

In a brief appearance before reporters, Franken stopped short of specifying how his memory differs from four women's accounts of separate incidents in which he allegedly initiated improper sexual contact.