The primary coming up Tuesday (for the Republican nomination in the heavily-GOP 3rd District of Utah) between incumbent amnesty supporter Chris Cannon and immigration hawk John Jacob is still up in the air. Political newcomer Jacob is still the underdog , but nearly 40 percent of registered Republicans are still undecided . The contest is mainly about immigration, with Cannon making hilariously implausible claims about opposing amnesty (he has a grade of F- on amnesty from Americans for Better Immigration). The race has also attracted outside interest, with Bush endorsing Cannon (though not mentioning immigration) and various industry associations sending checks just in the last week; meanwhile, Tom Tancredo’s Team America PAC , the immigration equivalent of the Club for Growth, is running radio ads against Cannon. Whichever way it goes, the result is likely to have a big impact on the debate in D.C.