Well, the first thing I noticed is that Lubed is a dumb ass and demonstrated it with his hysterical post about three terms. Other people were wrong as well but weren't as strident about it. Roosevelt was ELECTED to FOUR terms, not three. He died shortly after being sworn in 1945 and was replaced by Harry Truman who did serve as a Captain of Artillery in the First World War.
In a lot of ways the jury is still out on Roosevelt even after 70 years. He did try to transform the political structure of the country and in many ways succeeded. He increased the intrusive power of government into our everyday lives. There were several cases that the Supreme Court threw out when Roosevelt by executive order tried to insinuate the government into our lives;
Schecter vs. The U.S (1935) FDR attempted to regulate farmers on how they conducted business and defined for the farmers what was fair and foul. A poultry producers was charged with violating these laws by conducting his usual non harmful practices (the government did not try to make a case of public protection) or processing chickens for market. The SCOTUS threw out the EO.
Curtis-Wright vs. The U.S. (1936) FDR charged through an EO that the aircraft company could not sell war materials (in this case machine guns) to countries that he deemed embargoed. The country in question was Bolivia and we were not at war with anyone yet. The SCOTUS found that the president did have the power as Command in Chief to determine which countries could or could not recieve military aid from an American company.
Wickard vs. Filburn (1942) As a friend of the court, FDR defended a New Deal order that told farmers who they could or could not sell their products to or how much they could sell. Farmer Filburn grew wheat in Ohio. He held some back in his own silos for his animals on the farm. It was discovered that he was not selling all of his available produce on the open market. The bean counters who were trying to create a scientific formula for running the economy (socialism) charged that IF he sold his wheat rather than feed it, it would create a ripple in the economy that the government could not account for. It was found that the amount of wheat was negligible in the grand scheme of things but it was CONSTITUTIONAL for the government to have oversight on the personal produce of a farmer! The SCOTUS found that the executive branch did have the power because of the Interstate Commerce clause. This case has been used to justify even Obamacare.
FDR played fast and loose with the truth sometimes. We traded a bunch of naval destroyers to England when they needed escorts against German submarines. Of course, this created a "crisis" and Congress was forced to order more destroyers built which was something that they had opposed. FDR allowed aircraft to be sold to Spain and France from our fledgling Army Air Corps which created another "crisis" that Congress had to bail him out of. FDR stuck our chin way out there in both Europe and Asia with our escorts of British shipping, our patrols on the rivers of China, and our forced embargo of oil and steel to Japan from countries that didn't belong to the US in any way shape or form.
Roosevelt failed to fix the Great Depression unlike every other country in the world. In most of Europe they didn't even call it the "Great" Depression they recoverd so quickly. Only the war saved Roosevelt's legacy. Which brings me to some good things about Roosevelt; he got good people people to not only run the war (Marshall, Nimitz, and Eisenhower) but he got good people to ride herd on the economy to get us over to a wartime footing. These unnamed heroes allowed industry to run full blast with little regulation. It takes about ten years to build an aircraft carrier today from the plans to the ship being manned. In World War II (yes, the ships were much smaller) we produced 16 fleet carriers and over 40 jeep carriers within four years plus all of the support ships. We ended the war with a 1200 ship navy. This doesn't even take into account the supply ships like the Liberty class freighters which the Kaiser Shipyard of San Fransisco could build in eight days.
The United States produced over 100,000 aircraft for the war. B-25s were produced right here in Kansas City at the Fairfax plant.
A negative of this was the power of govenment was increased once again. I can't recall the name but one man had a literal field of scrap metal (farm equipment, cars, and the like). The goverment came and confiscated all of it without payment for the war effort. The man said that is was his retirement fund but that didn't stop the federal government from stealing the material.
As for FDR's administration, his Vice President Henry Wallace was feeding information to Stalin including progress on the atom bomb. This we know from the papers published after the fall of the USSR. There were others with a similar mindset in his administration. Roosevelt turned a blind eye to FBI reports.
In 1940 Wendell Willkie would likely have won the election if Roosevelt had stood down according to custom established by George Washington. Willkie was a businessman and believed, rightly, that the US was going to be involved in a two front war. I expect that our fleet builds would have started two years earlier which would saved thousands of lives in the Pacific, our aircraft would have been improved to the point of at least parity with the Zero and the Messerschimdt. I expect World War II would have ended sooner with less loss of lives under Willkie and the atom bomb may not have been necessary. Both Willkie and his Vice President McNary would have died in office in 1944 leaving the country to the great unknown...Vice President Thomas Dewey?