A conservative site offers a pretty convincing analysis of the Hispanic exit polls and shows that, well, they're bullshit. At least the NEP poll was. The NDN poll is probably more accurate but the NEP doesn't pass the laugh test. Bush did NOT get 44% of Hispanics. He probably got closer to 38%. A modest jump but not much over 35% in 2000.
http://www.vdare.com/sailer/041110_poll.htm