(CNN) -- By a wide margin, Americans who voted Tuesday in the midterm election say they disapprove of the war in Iraq, but more voters said corruption and ethics were extremely important to their vote than any other issues, including the war, according to exit polls of voters across the country.

By a wide margin, voters also disapproved of how Congress and President Bush are doing their jobs, although Bush fared slightly better on that score than members of the GOP-led Congress.

Asked which issues were extremely important to their vote, 42 percent said corruption and ethics; 40 percent, terrorism; 39 percent, the economy; 37 percent, Iraq; 36 percent, values; and 29 percent, illegal immigration.

Nationally, 57 percent of voters said they disapproved of the war in Iraq, while only 41 percent approved. Those figures mirror Bush's job approval among voters, with 58 percent saying they disapprove of the president's performance and only 41 percent approve.

Asked if they approved of how Congress is handling its job, 62 percent said they did not, while just 36 percent said they did.

Voters were also asked whether they were more motivated by national issues or local issues in their votes for the House. Sixty-two percent said national issues were more important, while 33 percent named local issues.