sentences:  From 1992 onward, the county has backed the Democratic candidate in every presidential election, though never by a margin greater than 10 percent aside from 2008 when Illinoisan Barack Obama won it by nearly 14 points.This relative closeness in results was most evident in 2004 when the county backed John Kerry over George W. Bush by only 70 votes.In Congress, Peoria County is represented by Democrat Cheri Bustos of Illinois's 17th congressional district and Republican Darin LaHood of the Illinois's 18th congressional district
  
  In the Illinois Senate, Peoria County is represented by Republican Chuck Weaver of the 37th Legislative District and Democrat Dave Koehler of the 46th Legislative District.