Question: Stuart Smalley is a fictional character invented and performed by which comedian, writer, and satirist, and later United States Senator from Minnesota? 

Context paragraphs:
Casey Ribicoff: Casey Ribicoff (born Lois Ruth Mell; December 5, 1922 in Chicago, Illinois - died August 22, 2011 New York City, New York) was an American philanthropist, socialite and the second wife and widow of United States Secretary of Health, Education, and Welfare and later United States Senator from Connecticut, Abraham Ribicoff.  Ribicoff was the President of the ladies auxiliary of Mount Sinai Medical Center in Miami Beach, Florida and in 1963 became the first woman to be selected to serve on the hospital's board of trustees.

Al Franken: Alan Stuart "Al" Franken (born May 21, 1951) is an American writer, comedian, and politician.  Since 2009, he has been the junior United States Senator from Minnesota.  He became well known in the 1970s and 1980s as a writer and performer on the television comedy show "Saturday Night Live".  After decades as a comedic actor and writer, he became a prominent liberal political activist.  Franken was first elected to the United States Senate in 2008 in a razor-thin victory over incumbent Republican Senator Norm Coleman, and then won re-election in 2014 over Republican challenger Mike McFadden.  Franken is a member of the Minnesota Democratic–Farmer–Labor Party (DFL), an affiliate of the Democratic Party.

Steven (Alice Cooper character): Steven is a fictional character invented by the rock artist Alice Cooper.  He appears on the albums "Welcome to My Nightmare" (1975), "Alice Cooper Goes to Hell" (1976) -- via "A Bedtime Story" in the liner notes, "Hey Stoopid" (1991), "The Last Temptation" (1994), "Along Came a Spider" (2008), and "Welcome 2 My Nightmare" (2011).

Honor Harrington: Honor Stephanie Alexander-Harrington (née Honor Stephanie Harrington) is a fictional character invented in 1992 by writer David Weber as the heroine of the eponymous "Honorverse", a universe described in a series of best-selling military science fiction books set between 4003 and 4025 AD.

Ghoulardi: Ghoulardi was a fictional character invented and portrayed by voice announcer, actor and disc jockey Ernie Anderson as the horror host of "Shock Theater" at WJW-TV, Channel 8 (a.k.a. "TV-8") in Cleveland, Ohio from January 13, 1963 through December 16, 1966.  "Shock Theater" featured grade-"B" science fiction films and horror films, aired in a Friday late-night time slot.  At the peak of Ghoulardi's popularity, the character also hosted the Saturday afternoon "Masterpiece Theater," and the weekday children's program "Laurel, Ghoulardi and Hardy."

Jean-Pierre Kusela: Jean-Pierre Kusela is a fictional character invented by Spede Pasanen and played by Vesa-Matti Loiri, appearing in the Finnish sketch comedy series "Spede Show" from 1985 to 1987.  The character also appeared in "Vesku Show" from 1988 to 1991.  The character is a parody of typical French smooth-voiced "chanson" singers, particularly Jean-Claude Pascal, whose surname - like that of Kusela - has a connotation of toilet humour.  ("Pascal" sounds like ""paska"", Finnish for "shit", and hence the name Kusela comes from ""kusi"", Finnish for "piss".)

Mary Katherine Gallagher: Mary Katherine Gallagher is a fictional character invented and portrayed by "Saturday Night Live" cast member Molly Shannon from 1995 to 2001.  She was considered the first breakout character from the new 1995 cast, and a significant marker of the increased influence of women writers on the show in the 1990s.  Shannon portrayed the character in a 1999 film, "Superstar", and she also reprised the role when she hosted "Saturday Night Live" in 2007.

Stuart Smalley: Stuart Smalley is a fictional character invented and performed by comedian and satirist (and later United States Senator from Minnesota) Al Franken.  The character originated on the television show "Saturday Night Live", in a mock self-help show called "Daily Affirmations With Stuart Smalley."  It first aired on the show's February 9, 1991 episode hosted by Kevin Bacon.  Stuart is Franken's middle name.  Franken has stated that his "going to Al-Anon meetings inspired [the character] Stuart [Smalley]".  (He attended the meetings in support of his wife, who was battling alcoholism at the time.)

Brokers Exchange: The Brokers Exchange in Tonopah, Nevada, also known as the Tonopah Divide Mining Company was built in 1905 during Tonopah's mining boom.  Originally a two-story building, it housed a brokerage, real estate office, and the offices of Tonopah lawyer (later United States Senator) Patrick McCarran.  A fire destroyed the upper floor in 1912.  The Tonopah Divide Mining Company, controlled by George Wingfield and Cal Brougher, purchased the property for use as an office in 1919.  The ruined top story was removed and the first floor was re-roofed and capped with a decorate plaster frieze.

Share Our Wealth: Share The Wealth was a movement begun in February 1934, during the Great Depression, by Huey Long, a governor and later United States Senator from Louisiana.  Huey Long first proposed the plan in a national radio address, which is now referred to as the "Share Our Wealth Speech".

Supporting paragraphs: Stuart Smalley Al Franken
Answer: Al Franken