Both issues should be strong motivators.
I doubt we’ll get any traction on the economy, since the MSM has already decided:
“It’s the strongest recovery in US history”
or
“It would have been the strongest recovery in US history if the Republicans hadn’t cut the budget.”
Shamnesty is likely to be a third negative for Dems, IMO, behind 0bamaCare and gun control. If the GOP can't pick up seats right and left then they are done.