Senator Al Franken to resign over sexual harassment scandal, says Democratic official
Tweeden published this photo of Franken pretending to squeeze her breasts as she slept (Picture: Leeann Tweeden)

A US senator is poised to resign amid growing allegations about sexual misconduct, an official has said.

Minnesota Democratic Sen. Al Franken will give up his seat on Thursday, a Democratic official told MPR News.

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Franken said on Twitter he is going to make an announcement but says it is not that he will resign.

He said: ‘Senator Franken is talking with his family at this time and plans to make an announcement in D.C. tomorrow. Any reports of a final decision are inaccurate.’

Franken is accused of sexual harassment by numerous women.

Last week, he said that he’s focused on returning to work and that he’ll work to regain voters’ trust. Franken initially avoided the public eye when allegations first surfaced earlier this month.

He still disputes Leeann Tweeden’s account of a forced kiss, calling it a ‘normal rehearsal’ for a skit the two were performing. And he says he never intentionally grabbed or squeezed a woman’s buttocks.

But he says he’s taking responsibility and says it’s important ‘that we listen to women’.

Senator Al Franken to resign over sexual harassment scandal, says Democratic official
Leeann Tweeden is a former Playboy model (Picture: WireImage)

Tweeden, a former Playboy model, published a photo of the then-comedian pretending to grab her breasts as she slept after a USO Tour to entertain troops in 2006.

She claims she was left ‘disgusted and violated’ when Franken aggressively kissed her during a rehearsal for a skit.

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Tweeden explained that part of his show required him going in for a kiss. She wrote: ‘He repeated that actors really need to rehearse everything and that we <em>must</em> practice the kiss. I said “OK” so he would stop badgering me. We did the line leading up to the kiss and then he came at me, put his hand on the back of my head, mashed his lips against mine and aggressively stuck his tongue in my mouth.

‘I immediately pushed him away with both of my hands against his chest and told him if he ever did that to me again I wouldn’t be so nice about it the next time.

‘I walked away. All I could think about was getting to a bathroom as fast as possible to rinse the taste of him out of my mouth. I felt disgusted and violated.’

Senator Al Franken to resign over sexual harassment scandal, says Democratic official
The senator was a comedian at the time and said he thought the photo was funny (Picture: AP)

She avoided him for the rest of the trip.

They were returning home on Christmas Eve when she dosed off and the picture of Franken grabbing her was taken.

The Democrat eleased a statement denying how parts of the story played out and offering an apology.

He said: ‘I certainly don’t remember the rehearsal for the skit in the same way, but I send my sincerest apologies to Leeann.

‘As to the photo, it was clearly intended to be funny but wasn’t. I shouldn’t have done it.’