High Quality Content by WIKIPEDIA articles! In the months leading up to the opening of the 1940 Republican National Convention, the three leading candidates for the GOP nomination were considered to be Senators Robert Taft of Ohio and Arthur Vandenberg of Michigan, and District Attorney Thomas E. Dewey of New York. Taft was the leader of the GOP's conservative, isolationist wing, and his main strength was in his native Midwest and parts of the South. Vandenberg, the senior Republican in the Senate, was the "favorite son" candidate of the Michigan delegation and was considered a possible compromise candidate. Dewey, the District Attorney for Manhattan, had risen to national fame as the "Gangbuster" prosecutor who had sent numerous infamous mafia figures to prison, most notably "Lucky" Luciano, the organized-crime boss of New York City. All three men had campaigned vigorously during the primary season, but only 300 of the 1,000 convention delegates had been pledged to a candidate by the...