2008Final results
2008 election for President in Arizona
President · Arizona
John McCain (R) won with 53.6% of the vote, defeating Barack H. Obama (D) by 8.5 points.
John McCainRepublican · winner
53.6%1,230,111
Barack H. ObamaDemocrat
45.1%1,034,707
Bob BarrLibertarian
0.5%12,555
Ralph NaderIndependent
0.5%11,301
Cynthia McKinneyGreen
0.1%3,406
2,293,475 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
John McCain (R)Barack H. Obama (D)
Also on the ballot: Bob Barr (Libertarian), 0.5%; Ralph Nader (Independent), 0.5%; Cynthia McKinney (Green), 0.1%