If you want to make the US financially solvent, cut defense. Defense LAPS every other budget category. Whether you want to take the conservative position on why that is (our allies freeload on our defense spending) or the Progressive one (the U.S. is an empire in decline and every major empire through history has spent vast sums to maintain itself why would the U.S. be different) doesn't change the fact that our military budgets exceed over a dozen other nations' combined, the vast majority of whom are allies.