But that all changed pretty recently. They were slamming him pretty hard today. He's pretty obviously the GOP nominee at this point, so the Left feels that they have achieved that important goal. Now that the cards are dealt, they have turned on him and they are now playing to win.
I haven't seen a lot of the "Mormons are crazy and scary" talk yet, but I have no doubt that all the major news outlets are working on those stories.
The Mormon stuff will be mostly farmed out to a thousand lefty bloggers, mostly along the “Mormons are raaaacists” lines.
The major Dem hack sites will concentrate more on the “ultra rich guy out of touch with the common folk” and flip-flopper/opportunist themes.
Obama is so bad that very few candidates the GOP could have nominated would lose to him in 2012, but the establishment found one who is guaranteed to get his clock cleaned.