By Brendan McLaughlin

Turn on AM Talk Radio right now and chances are Rush or Glenn or Sean is attacking John McCain. I'm not a believer in any vast right-wing conspiracy, but many of these radio talkers  are clearly  working off the same script, calling McCain the biggest single threat to the conservative movement since Che Guevara.  

 The drumbeat of criticism against Florida's Republican primary winner, John McCain  is relentless, nasty and puzzling.  I understand that many conservatives don't like John McCain's policy on immigration, campaign finance reform and waterboarding.  But if you compare the conservative credentials of the remaining presidential candidates on all the issues from abortion to taxes, McCain is hardly an outlier. Few of these conservative radio hosts are actually endorsing Mitt Romney, but the single-minded focus on McCain and dismissive attitude toward Mike Huckabee makes their choice clear.  Their carpet bombing of McCain's reputation didn't help Romney in Florida. We'll see about Super Tuesday.