My guess is that somebody has some dirt on her.
Remember when Bill O’Reilly was a fire breathing conservative until the sexual harrassment thing happened? My guess is that Coulter got caught in some sort of sting. Maybe she tried to import a truckload of duty free cigarettes to her house, maybe she’s a lesbian, maybe she’s a certified “fag hag” (my guess) that is pro gay marriage. Whatever, she’s been turned and can’t be trusted from now on. Think of her as a Medved or Hewitt.
No. O’Reilly has never been a conservative. Ever.