Every American military conflict in the bloody 20th century from WW1 (and then we did it again 25 years later) to WW2 to Korea and Vietnam happened during a democrat administration. The U.S. media actually circled the wagons and protected the Truman administration from criticism and insultingly called Korea "the forgotten war" and subsequently forgot about it. The truth is that Truman was a bean counting senator who didn't even have a college diploma. Democrats selected him to run on the ticket while the sitting VP was on vacation when FDR was dying late in WW2 because they could push him around. Truman sent Troops to Korea on an executive order while he was trying to downsize the freaking Military. American (U.N. troops) beat the NK hoard back over the border in less than a year and even captured the NK capital of Pyongyang but timid Truman couldn't control his own general and the mission was expanded. Under the Truman/MacArthur "leadership", Korea turned into a 3 year meat grinder and we ended up back where we started while NK remains a threat to the free world fifty years later.
Truman has never been ranked lower than ninth best American president since Truman was first rated in 1962.
I know, I know Americas best historians are commies.
George Washington never attended college but went to surveyor school. Abe Lincoln never attended college.
After the debacle of Korea, Harry Truman couldn't even muster enough support in his own party to run for a 2nd full term and he bowed out of politics. The media writes the history books and the media created the fake legacy of the alleged "feisty" little president when in fact Truman was a timid little bean counter who couldn't even stand up to his own general until it was too late for 38,000 American Troops killed because of an ego trip by a possibly age related mental impairment. The media might have conveniently (and insultingly) forgot about the "forgotten war" but Americans didn't forget. As a matter of fact MacArthur thought he had the support of republicans for a presidential run but Korean Vets hated him and he ended up running as an independent knowing he would probably syphon votes from fellow Vet. Dwight Eisenhower.
Many people write history books including whatever the media might be, but the histories written by the noted professional historians and accepted by the best historians as the cream of the crop are the ones I prefer. Those are the historians asked to rate the presidents, and new historians are asked each four years, since 1948,
Truman is the only president with the guts to fire MacArthur, and the guts to take back S. Korea and drop the bombs. Korea is the forgotten war because it was almost an aftermath of WWII, and people were tired of war.
Truman is still rated ninth best president by those noted historians.