Which "Saturday Night Live" cast member was famed for his impressions of Bill Clinton, Chris Matthews and Dick Cheney?

Besides "My Favorite Martian," which sitcom starring Bill Bixby debuted in 1969? Bill Campbell became mayor of which Southern state capital in 1994? Bill Clinton and Antonin Scalia both graduated from which Washington, D.C., university founded in 1789? In 1997, Bill Clinton awarded the Presidential Medal of Freedom to which man he had defeated in the 1996 election? In which Arkansas town was Bill Clinton born on August 19, 1946? Bill Clinton's first Treasury secretary was which Texan who had been Michael Dukakis's running mate in 1988? Which 1955 No. 1 hit by Bill Haley & His Comets counts its way through the hours of the day? Colorado horse rancher Bill Harmsen and his wife founded which candy company in 1949?