Poll: 37% Willing to Support Third Party Candidate for President

From Public Policy Polling:

Americans think both major political parties are ideologically extreme. And 37% of them say they'd be open to supporting a third party candidate for President next year . . .  37% of voters may be open to supporting a third party candidate but there's considerable division within those ranks about what kind of third party candidate they'd want to support. . . . 14% of them want someone who's to the left of the Democrats. 29% want someone who's to the right of the Republicans. The largest group at 48% does want a centrist- someone more conservative than the Democrats but more liberal than the Republicans- but that only accounts for 18% of the overall electorate . . .