Table:
text: United States House of Representatives elections, 2006
Iowa
Iowa
District Incumbent Party First_elected Results
Iowa 1 Jim Nussle Republican 1990 Retired to run for Governor Democratic gain
Iowa 2 Jim Leach Republican 1976 Lost re-election Democratic gain
Iowa 3 Leonard Boswell Democratic 1996 Re-elected
Iowa 4 Tom Latham Republican 1994 Re-elected
Iowa 5 Steve King Republican 2002 Re-elected

Question: Which incumbent was in office before 1996 and was re-elected in the 2006 United States House of Representatives election in Iowa?

Question: From which party is the incumbent from the 2004 United States House of Representatives elections from Iowa 2006 who was first elected to office in 1990?

Question: In the 2006 United States House of Representatives election, in what year did the Democratic incumbent, who was re-elected in Iowa, first take office?