@CliftonR Disagree: he authorized Zbignew Brzezinski's strategy of setting the Soviet near abroad aflame, which led to the USSR's invasion of Afghanistan and set us on the road to Afghanistan's descent into the hellscape we now recognize. He oversaw a massive military build-up (that Reagan took credit for). Arguably, he shat the bed over Iran (the revolution happened 3 years into his administration—he could have leaned on the Shah).
On the other hand? Eliminating Guinea worm is a big deal.