A WOMAN running for Attorney-General in Michigan has released a cheeky new ad encouraging voters to support the candidate "who doesn't have a penis".

Capitalising on the recent torrent of sexual harassment allegations against politicians and other powerful men, Democrat Dana Nessel tells voters to ask themselves: "Who can you trust most not to show you their penis in a professional setting?

"Is it the candidate who doesn't have a penis? I'd say so," says the civil rights attorney, who is competing against Republican state House Speaker Tom Leonard.

The now-viral ad features headlines about accusations against Alabama Senate candidate Roy Moore, journalist Charlie Rose and President Trump - before Nessel vows that she won't have the same problems as these and other accused men.