WASHINGTON — A Capitol Hill sex scandal has reinforced public doubts about Republican leadership and pushed Democrats to a huge lead in the race for control of Congress four weeks before Election Day, the latest USA TODAY/Gallup Poll shows.
Democrats had a 23-point lead over Republicans in every group of people questioned — likely voters, registered voters and adults — on which party's House candidate would get their vote. That's double the lead Republicans had a month before they seized control of Congress in 1994 and the Democrats' largest advantage among registered voters since 1978.

(From USA Today).