A group of democratic female U.S. senators have called for Sen. Al Franken, D-Minn., to 'step aside' in a show of force following sexual misconduct allegations against him.

In an Associated Press report on Wednesday, the senator denied a new sexual misconduct accusation that came from a former Democratic congressional aide that he tried to forcibly kiss her after a taping of his radio show in 2006.

The Minnesota Democrat said in a statement that the allegation, reported by Politico, was "categorically not true."

The woman, who was not identified by name, said Franken pursued her after her boss had left and she was collecting her belongings. She said she ducked to avoid his lips, and that Franken told her: "It's my right as an entertainer."

Franken, in his statement, said the idea he would claim such conduct as a right as an entertainer was "preposterous."

The senator is facing a Senate Ethics Committee investigation into previous claims by several other women that he groped them or sought to forcibly kiss them.

Following his response U.S. Sens. Kirsten Gillibrand, D-N.Y., Sen. Claire McCaskill, D-Mo., Sen. Maggie Hassan, D-N.H., Sen. Mazie Hirono, D-Hawaii, all called for him to step down over social media. Other senators have joined in calling for his resignation.

According to the Associated Press Sen. Franken's office said an announcement is scheduled Thursday.

U.S. Sen. Kirsten Gillibrand released an open letter Wednesday morning on her Facebook page following the Politico report: