I think it's a stretch to call what Republicans have come up with a "strategy." The people who are taking on these fights in the GOP aren't shrewdly and carefully assessing the percentages of liberals, moderates, and conservatives in America, and planning accordingly -- they're drinking their own Kool-Aid and concluding, at least on a subconscious level, that they don't have to worry about non-conservative voters because non-conservatives aren't really Americans.
Ann Coulter says Democrats would never win if we took away women's right to vote. Rush Limbaugh says Obama is pursuing an electoral strategy of trying win the votes of "the takers," not "the makers." These are rhetorical flights of fancy, but I think a large percentage of Republicans actually believe them, and have started to think that voters who don't pull the (R) lever aren't actually voters at all, because they shouldn't be.This isn't exactly news, but it is a nice capsule description.