If the republicans don't get spending under control the point is mute. Conservatives will stay home and the dems will move in.
moot
Young conservatives should care very much about government spending, but most don't. In fact, that issue probably doesn't even make their top 5 list of why they vote Republican.
Partly this depends on how many SCOTUS justices are replaced between now and the election. If abortion is soundly repealed--or if there is no chance of it--that will impact pro-Life turnout. If we see real success in Iraq, the antiwar anarchists won't get the attention they have had lately. If the economy is stable, GOP can expect more moderate votes. If Hillary is REALLY well exposed as a fraud, hypocrite and worse as she tries to pose as a Bible thumper the next few months (and I pray she actually READS it!) then she's less a threat. And the PJHadeen will be stronger than ever in '08, as will our dedication to thwart vote fraud, for many years the Plan A of the crooks in charge of the DNC.