That depends on whether the New Media can discredit the Liberal Stream Media, and how good of a communicator Romney could be. The trends so far are encouraging. Also, Sens like Manchin, Lieberman, or Dems vulnerable in 2014 can be persuaded to vote the right way on important tax reform legislation and energy issues.
Lieberman is retiring and the Dems are ahead for his Connecticut seat.
Manchin said in debates this year that he does not want to repeal Obamacare, but wants to reform and improve it.