Al Franken is accused of more than just posing for a crass joke picture:

In the days that followed, seven additional women came forward with allegations of inappropriate behavior during photo ops. Lindsay Menz accused Franken of touching her clothed “upper” buttocks while they posed for a photo at the Minnesota State Fair in 2010. Two anonymous women made similar complaints related to events during political events. Franken apologized, saying, “I’ve met tens of thousands of people and taken thousands of photographs, often in crowded and chaotic situations. I’m a warm person; I hug people. I’ve learned from recent stories that in some of those encounters, I crossed a line for some women—and I know that any number is too many.” Another anonymous woman said that after she was a guest on Franken’s radio show in 2006, Franken leaned in toward her face during a handshake and gave her “a wet, open-mouthed kiss” on the cheek when she turned her face aside. The same day, Stephanie Kemplin, an army veteran, told CNN that Franken held the side of her breast for 5 to 10 seconds “and never moved his hand” while posing for a photograph with her during a 2003 USO tour in Iraq.

https://en.wikipedia.org/wiki/Al_Franken#Sexual_misconduct_allegations