2008 U.S. congressional elections (Delaware)

Candidates
In the 110th Congress, Delaware had 1 Republican in the House as well as 2 Democratic Senators.

In the 2008 elections, Delaware elected 1 Republican to the House and continues to have 2 Democratic Senators.

Senate
Incumbent (Democrat): Joe Biden

Winner: Joe Biden


 * Republican candidate: Christine O'Donnell
 * Democratic candidate: Joe Biden

District at-large
Incumbent (Republican): Mike Castle

Winner: Mike Castle


 * Republican candidate: Mike Castle
 * Democratic candidate: Karen Hartley-Nagle