Bernie Sanders has called on Donald Trump to "think about resigning" over the leaked Access Hollywood tape in which he is heard bragging about sexually assaulting women.

The former Democrat presidential candidate said Mr Trump’s conduct, and that of other leading politicians, showed the country needed a “cultural revolution” in the way it treated women.

Speaking to CBS’ This Morning, he said: “We have a president of the United States who acknowledged on a tape widely seen all over the country that he's assaulted women, so I would hope maybe the president of the United States might pay attention of what's going on and also think about resigning.”

He added that he worried that “in restaurants and in offices all over this country, where you have bosses who are not famous, there is harassment of women and women are being intimidated.”

The video first emerged in October 2016 when Mr Trump, then the star of reality show The Apprentice, is heard bragging about how he is allowed to “grab women by p****” because he is a “star”.

He has also been accused of sexual assault and harassment by at least 20 women.

Mr Sanders’ comments follow the announcement that Democratic Senator Al Franken will stand down from the Senate over allegations that he sexually harassed at least six women.

In an emotional speech on the Senate floor, the Minnesota politician said it was “the worst day of my political life” but took a parting shot at Mr Trump and Alabama Senate candidate Roy Moore.

He said: “I, of all people, am aware that there is some irony in the fact that I am leaving while a man who has bragged on tape about his history of sexual assault sits in the Oval Office, and a man who has repeatedly preyed on young girls campaigns for the Senate with the full support of his party.”

Every woman to make sexual assault claims against Donald Trump Show all 16 1 /16 Every woman to make sexual assault claims against Donald Trump Every woman to make sexual assault claims against Donald Trump E Jean Carroll Author Carroll alleges that Trump pinned her against a wall and forced himself upon her in the changing rooms of a Manhattan department store in the mid-90s Getty Every woman to make sexual assault claims against Donald Trump Kristin Anderson Anderson alleges that Mr Trump touched her genitals while at a club in the early 1990s Every woman to make sexual assault claims against Donald Trump Jessica Leeds Leeds told the New York Times that Mr Trump groped her on an airplane in the 1980s BBC Every woman to make sexual assault claims against Donald Trump Natasha Stoynoff Stoynoff alleged that Mr Trump forcefully kissed her before an interview at his Mar-A-Lago estate in 2005 Everipedia Every woman to make sexual assault claims against Donald Trump Karena Virginia Virginia alleges Mr Trump groped her in 1998 outside of the US Open tennis tournament BBC News Every woman to make sexual assault claims against Donald Trump Temple Taggart Taggart claims Mr Trump gave her a kiss without consent during a rehearsal for a 1997 Miss USA pageant Every woman to make sexual assault claims against Donald Trump Summer Zervos The former Apprentice contestant alleged that Mr Trump kissed and groped her at a Beverly Hills hotel in 2007 Every woman to make sexual assault claims against Donald Trump Alva Johnson A former staffer for Trump's campaign, Johnson alleges that Trump forcibly tried to kiss her after a rally in August 2016 MSNBC Every woman to make sexual assault claims against Donald Trump Jennifer Murphy The former Apprentice contestant said Mr Trump "surprise kissed" her - but she said it did not bother her Every woman to make sexual assault claims against Donald Trump Jill Harth The makeup artist accused Mr Trump of "attempted rape" while in his daughter's room in 1997 Every woman to make sexual assault claims against Donald Trump Mindy McGillivray McGillivray alleges Mr Trump groped her at Mar-A-Lago in 2013 AP Every woman to make sexual assault claims against Donald Trump Rachel Crooks Crooks says that kissed her on the cheeks and mouth when she introduced herself to him in 2005 Every woman to make sexual assault claims against Donald Trump Mindy McGillivray McGillivray claims that Trump grabbed her backside at Mar-a-Lago in 2006 CNN Every woman to make sexual assault claims against Donald Trump Cassandra Searles The former Miss Washington alleges that Trump repeatedly grabbed her backside and invited her to his hotel room Getty Every woman to make sexual assault claims against Donald Trump Jessica Drake Drake claims that when she and two other women arrived to Trump's hotel room at his invitation, he arrived at the door in pyjamas and tightly hugged and kissed each of the woman without permission Getty Every woman to make sexual assault claims against Donald Trump Ninni Laaksonen The former Miss Finland claims that Trump squeezed her behind before they appeared together on the Late Show with David Letterman in 2006 EPA

Mr Moore has been accused of initiating sexual contact with several girls as young as 14 when he was in his 30s. He has denied the allegations.

Washington has been engulfed by the fallout from the sexual harassment scandal involving leading figures from the worlds of politics, entertainment and journalism.

Since the New York Times and the New Yorker revealed multiple allegations of sexual harassment, assault and rape against movie producer Harvey Weinstein in October, dozens of women and some men have come forward to accusing leading figures of abuse.