At first, it was just one Facebook post Wednesday morning from Sen. Kirsten Gillibrand urging her colleague Sen. Al Franken to resign, making her the first Senate Democrat to do so. Within an hour, at least 10 Democratic senators and the chairman of the Democratic National Committee were demanding the same thing. 

Within two hours, New York's Gillibrand, Claire McCaskill of Missouri, Patty Murray of Washington, Mazie Keiko Hirono of Hawaii, Maggie Hassan of New Hampshire, Kamala Harris of California, Bob Casey of Pennsylvania, Joe Donnelly of Indiana, Sherrod Brown of Ohio, Heidi Heitkamp of North Dakota, Debbie Stabenow of Michigan, Ed Markey of Massachusetts, Maria Cantwell of Washington and Dick Durbin of Illinois released statements and social media posts in the wake of the growing number of women alleging Franken sexually harassed them. 

Franken's office announced he will make an announcement Thursday, although it's unclear yet what that announcement will be. 

"While Senator Franken is entitled to have the Ethics Committee conclude its review, I believe it would be better for our country if he sent a clear message that any kind of mistreatment of women in our society isn't acceptable by stepping aside to let someone else serve," Gillibrand, the first to speak up Wednesday morning, said in a Facebook statement. "In the wake of the election of President Trump, in just the last few months, our society is changing, and I encourage women and men to keep speaking up to continue this progress. At this moment, we need to speak hard truths or lose our chance to make lasting change."

"Sexual harassment and misconduct should not be allowed by anyone and should not occur anywhere. I believe the best thing for Senator Franken to do is step down," Harris said on Twitter. 

McCaskill put her statement quite simply: "Al Franken should resign," she tweeted.

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