His voters need to be won back. Many of them were young and are Obama Democrats. You won't draw Obama democrats to the polls by kicking him around all day every day instead of pushing policy that will help them. If you want them to be lifelong democrats, how do you make that happen?
Good policy would be helpful. Not trashing the person that convinced them to vote for the first time would help too. We could try supporting better candidates that are for things that they want, like more money, better schools. All we talk about are the middle class and small business owners. There are millions of cash poor Americans we neglect that vote for policies that are liberal. Many vote for minimum wage last night. And legalizing pot. We have too many dems still fighting the drug war and fearing republicans being mean to them about voting for Obama. They are pandering to a group of folks who would never vote for them anyway while ignoring liberals.