This question has been bounced around on the armchair list for a while...here's a bit of evidence on the question. It's from Canada, but I doubt that American results would be that much different. The vast majority of Canadians support farm subsidies for the indefinite future.
The question keys into a bit of standing Canadian anti-Americanism, but change the question wording to reflect American farmers receiving lower subsidies than the French, and I think results of an American poll would be quite similar. The poll, taken August 2001, can be found at: http://www.canadianalliance.ca/hotissues/viewby/index.cfm?DoID=756&readarticle=1&dirlevel=2&category=4&department=37 Eric -- "If you found out that Canadian farmers receive less subsidies than American or European farmers, which of these two statements would come closer to your view: a) Canadian farmers should not receive subsidies to help them compete with the subsidies that farmers in other nations receive, even if this means that some farmers go bankrupt ... 13% b) Canadian farmers should receive subsidies to help them compete until farm subsidies in other nations are lowered, even if this means subsidizing farming for many years .... 78% c) no opinion ... 10%