FDR, a Democrat, got elected to 4 terms in office.
The Republicans didn't like that, and passed the 2 term max limit. What seems ironic is that the Republican president after Truman was Eisenhower, and IIRC, he was so popular (I Like Ike!) that the Republicans might have elected him to at least a 3rd term.
As an aside, when I lived in Atlanta, I visited the FDR Georgia White House in Warm Springs. Although he had <polio? something else requiring braces?>,
his Ford automobile with a manual transmission was on display in a glassed in garage. It had multiple extra mechanical doodads so that he could drive it.
While visiting the house itself, I saw the chair in which he was sitting for a portrait painting when he suffered his fatal stroke. They moved him to his bedroom, which is where he actually expired.
The US people were hit with a tragic shock when their Commander in Chief died suddenly, and I was allowed to visit this site.
A few years ago, I heard a fleeting one time report that lightning had struck the Warm Springs White House, and burned it to the ground. I have been meaning to duckduckgo around (I hate Google) to get more details on this.