A look at Sen. Al Franken

Sen. Al Franken listens during a Senate Judiciary Subcommittee on Crime and Terrorism hearing titled 'Extremist Content and Russian Disinformation Online' on Capitol Hill, Oct. 31, 2017 in Washington, DC.

Sen. Al Franken, D-Minn., holds hands with his wife Franni Bryson, as he leaves the Capitol after speaking on the Senate floor, Dec. 7, 2017, on Capitol Hill in Washington. Franken said he will resign from the Senate in coming weeks following a wave of sexual misconduct allegations and a collapse of support from his Democratic colleagues, a swift political fall for a once-rising Democratic star.

Sen. Al Franken leaves the U.S. Capitol with his wife Franni Bryson after speaking on the floor of the U.S. Senate Dec. 7, 2017 in Washington. Franken announced that he will be resigning from the U.S. Senate in the coming weeks following a barrage of allegations related to inappropriate conduct with women.

Senator Al Franken arrives for the Senate Judiciary Committee hearing the nomination of Christopher Wray's to be the director of the Federal Bureau of Investigation in the Dirksen Senate Office Building on Capitol Hill, July 12, 2017.

Sportscaster Leeann Tweeden and then-comedian Al Franken meet and greet military members during an autograph signing session of the USO Sergeant Major of the Army's 2006 Hope and Freedom Tour in Camp Arifjan, Kuwait, on Dec. 14, 2006.

Senator Al Franken tales a break during the Neil Gorsuch Senate Judiciary Committee confirmation hearing as President Donald Trump's nominee for the Supreme Court on Capitol Hill in Washington, DC. March 20, 2017.

Franken looks over his papers during a Senate Energy and Natural Resources Committee hearing on hurricane recovery efforts in Puerto Rico and the U.S. Virgin Islands on Capitol Hill on Nov. 14, 2017.

Franken speaks on stage during the 76th annual Peabody Awards ceremony on May 20, 2017, in New York City.

Franken speaks with students from Valley View Middle School in Edina, Minn., as they visited Capitol Hill on May 18, 2017.

Franken shares a smile with Michigan Sen. Debbie Stabenow during a hearing on Capitol Hill on May 18, 2017.

Sen. Al Franken poses for a portrait after speaking with USA TODAY on May 18, 2017.

Franken continues a round of meetings with representatives from local Minnesota organizations on Capitol Hill on May 18, 2017.

Franken directs a question to Neil Gorsuch during the Senate Judiciary Committee hearing on Gorsuch's nomination to be an associate justice of the Supreme Court on March 21, 2017.

Franken speaks during the Democratic National Convention in Philadelphia on July 25, 2016.

Franken, accompanied by his wife, Franni Bryson, speaks with reporters outside his Minneapolis home on Nov. 5, 2014, after winning a second term.

Franken walks off Air Force Once with President Obama, Sen. Amy Klobuchar and Rep. Betty McCollum at Minneapolis-St. Paul International Airport on Feb. 4, 2013. Obama was traveling to Minneapolis to speak about gun violence.

Then-Senate Judiciary chairman Patrick Leahy speaks with Franken on June 30, 2010, at the committee's Supreme Court confirmation hearing for Elena Kagan.

Franken questions Sonia Sotomayor on Capitol Hill on July 15, 2009, at her Supreme Court confirmation hearing before the Senate Judiciary Committee.

Franken participates in a ceremonial swearing-in with Vice President Biden on July 7, 2009, on Capitol Hill.

Franken talks to supporters during a rally at the mall of the Minnesota State Capitol in St Paul, Minn., on July 1, 2009.

Franken talks with reporters outside his home in Minneapolis on April 13, 2009, after a court confirmed that he won the most votes in his 2008 Senate race against Republican Norm Coleman.

Franken, as his wife, Franni, looks on, delivers a speech to the media in front of his home after the Minnesota state canvassing board certified the recount in his bid for the U.S. Senate on Jan. 5, 2009, in Minneapolis.

Former president Bill Clinton and Franken appear a rally at the Minneapolis Convention Center on Oct. 30, 2008.

Franken removes his headset after announcing on his radio show, Air America, in Minneapolis on Feb. 14, 2007, he will run for U.S. Senate in 2008.

Franken speaks during a news conference at Air America Radio studios on Aug. 25, 2004, in New York City.