What if Taft beat Eisenhower in the 1952 Republican Primaries?

In 1952 Robert Taft wins the Republican nomination and starts running for president with MacArthur as his running mate on a platform of pulling out of the UN, Dissolving NATO, Pulling out of Korea, and Dismantling the New Deal.

Eisenhower proceeds to spend the year heavily campaigning for Truman’s 1952 run (Truman decides to run without Eisenhower as the opponent); arguing to moderate republicans that a Taft presidency would result in a communist takeover of the old world and pointing out that he supported peace with Hitler.

Who wins?