Healthcare is where the savings are, ignore healthcare and it cannot be done.
I’ve heard Trump address healthcare costs somewhat. One point I think is interesting. Allow re-importing of America-made pharmaceuticals and import of foreign-made pharmaceuticals. American pharma companies sell the same drugs in America for much more than they do in foreign countries.
Re-importing will cause pharma to raise prices in other parts of the world so they cannot be re-imported and undercut their US prices. That will be tough, though, because they will be competing with foreign makers both abroad and at home. This should result in slightly higher prices abroad but much lower prices here. A big chunk of Medicare and Medicaid costs is prescription drugs, so it should reduce those budget items somewhat. Doesn’t sound like a huge amount to me, but I like the principle of competition reducing the gouging of Americans to benefit foreigners.