We do not have 4 more years.
Unfortunately, I'm not confident that any of the Republican candidates understand what is truly necessary to restore us to even semi-sound financial footing. We should be immediately eliminating entire federal departments. The easy ones, Energy, Education, and most of the EPA should disappear tomorrow.
The second front in the war on bloated government should involve removing all of the incentives that cause it to grow in the first place. No more pensions for members of Congress, period. Elected office was never meant to be a lifetime gravy train.
Every bill should be required to include a clear citation of the specific constitutional provision that authorizes it.
And net receivers of unearned government benefits should not be able to vote until they get off the public dole. I know this one is pretty much politically impossible, but it gets at the heart of the problem. If we don't do something drastic to prevent corrupt politicians from literally buying votes with other people's money, the supply of "free stuff" will run dry anyway as the whole thing collapses.