The major concern of all conservatives when voting at the federal level is the total political makeup of the next Congress. If there are enough TRUE conservatives that are part of the next Congress, then conservatism has a serious chance for some kind of decent political comeback sooner rather than much later, but if the next Congress is truly a super-majority of socialists in both the House and Senate, then U.S. conservatism as well as the entire U.S. as a capitalistic country is truly finished. The political left in complete charge will truly create serious long-term damage on all of the issues that eventually succeeds in turning the U.S. into a socialistic third world country for the long-term.
The left will be in charge of the Presidency no matter who wins the election.