yes the dems had a strong ground game and used dirty tactics to bribe voters, however the over-riding reason why the GOP lost was because they lack a backbone and allowed the left to paint them as mean devisive, obstructionists who want ot deny women health care and htrow granny over the cliff- they were very successful at this and hte gop ALLOWED them to do this to them without lifting a figner to fight back agaisnt the left- The left LIED and NOONE called them to the carpet for it- Noone! Someone like Mark Levine if he were to run woudl have NEVER allowed the left to misrepresent him so dramatically andh e would not have let them get away with hteir dirty tactics- the GOP apparently has becoem incapable of effectively defendign htemselves agaisnt the false accusations of the left- and it’s proven very effective tactic of the left in winning elections-
Obama's campaign started their "kill Romney" strategy early -- even before our nominee was selected. They especially focused on Ohio with their poisonous lies about Romney.
Meanwhile, Romney was still fighting in the primaries and could not spend campaign money rebutting these ads.
I'm not sure what can be done about this dirty Dem tactic, unless outside groups (like PACs) are willing to spend their $ on ads of their own, to counteract the Dems' outrageous lies.