Incumbent Republican Congressman Paul Ryan has represented this swing district in southeast Wisconsin since his initial election in 1998.

Incumbent Democratic Congresswoman Tammy Baldwin, the only openly lesbian member of Congress, has represented this deep-blue district located in Madison and vicinity since 1999.

Congresswoman Moore faced Republican candidate Perfecto Rivera, whom she was easily able to dispatch with to return to Washington for another term.

Incumbent Republican Congressman Jim Sensenbrenner, who has represented this solidly conservative district based in the northern suburbs of Milwaukee since 1979, ran for a fifteenth term this year.

Facing no major-party opposition, incumbent Republican Congressman Tom Petri was easily able to retain his seat for a fourteenth term in this heavily conservative district located in the cities of Oshkosh and Neenah.