Sen. Al Franken issued an extended apology and called for a Senate ethics investigation into his behavior during a 2006 USO tour, when a Los Angeles radio personality said he kissed and groped her without her consent.

Leeann Tweeden published her account of what happened morning on the website of KABC Radio in Los Angeles, setting off a firestorm of criticism and calls for Franken to face a Senate ethics investigation.

Tweeden wrote a lengthy account of Franken, a Democrat who joined the U.S. Senate in 2009, forcing a kiss on her during a rehearsal for a skit they planned to perform for troops deployed to the Middle East.

“I’m still angry at what Al Franken did to me,” she wrote.

Senate Majority Leader Mitch McConnell called for a Senate investigation into the incident, which occurred before Franken joined the U.S. Senate.

Within hours of Tweeden going public, calls for Franken to resign from the Senate were already surfacing.

She said the memory of the incident still infuriates her: the memory of wanting to get to a bathroom to “Rinse the taste of him out of my mouth,” then the shock of returning home to see the photo of herself, asleep, and Franken mugging for the camera and miming a pair of groping hands over her chest.

After years on “Saturday Night Live” followed by a nationally syndicated radio show, Franken parlayed his celebrity into a political career in Minnesota, w he grew up and graduated from high school.