Gee, why could that be?
Lots of talk in the media about McCain vs. The Mighty Wombats of Talk Radio. Ask President Tancredo about that one. The talkers can raise an issue to prominence, they can entertain, but they do not really deliver actual votes. Sorry Rush.
Defeated Senate schemer Rick Santorum now campaigning for Mitt with a way-over-the-top robocall calling McCain nuts. A cheap shot from a prickly guy; a lot of people in GOP politics miss Santorum's voting record in DC, but very few miss him.
Which leads to the illegal immigration issue. From an election results perspective it appears hanging out with the anti-immigrant Bund seems to be a kiss of death. Tancredo: fizzled. Fred Thompson, endorsed by Iowa nativist Steve King; Kaput. Now Romney; on the ropes. I've never seen an issue with so much perceived heat, yet such short legs on Election Day.
Perhaps the Republican primary electorate has different views than the conservative intelligentsia?