2008Final results
2008 election for President in Iowa
President · Iowa
Barack H. Obama (D) won with 53.9% of the vote, defeating John McCain (R) by 9.5 points.
Barack H. ObamaDemocrat · winner
53.9%828,940
John McCainRepublican
44.4%682,379
Ralph NaderPeace and Freedom
0.5%8,014
Bob BarrLibertarian
0.3%4,590
Charles ""chuck"" BaldwinConstitution
0.3%4,445
Cynthia McKinneyGreen
0.1%1,423
James HarrisSocialist Workers
0.0%292
Brian MooreSocialist
0.0%182
Gloria Estella La RivaParty for Socialism and Liberation
0.0%121
1,537,123 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 2008
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The candidates
Barack H. Obama (D)John McCain (R)
Also on the ballot: Ralph Nader (Peace and Freedom), 0.5%; Bob Barr (Libertarian), 0.3%; Charles ""chuck"" Baldwin (Constitution), 0.3%; Cynthia McKinney (Green), 0.1%; James Harris (Socialist Workers), 0.0%; Brian Moore (Socialist), 0.0%; Gloria Estella La Riva (Party for Socialism and Liberation), 0.0%