If the republicans are smart, they will elect a fiscal conservative with social issues taking a back seat.
I've yet to see a Republican who is willing to do some major slimming down of the Military - which today probably accounts for between 25 and 40 percent of the entire budget.
When most countries spends 3-8 percent of their budgets on their military, it's just economic insanity for USA to keep spending up to ten times as much of the budget.