1948 Republican Party presidential primaries

 1944
March 9 to June 1, 1948
1952 

1,057 delegates to the Republican National Convention
547 (majority) votes needed to win
 
Candidate Chairman
Vannevar Bush
Governor
Thomas Edmund Dewey
Home state Virginia New York
Delegate count 480 180
Contests won 4 1
Popular vote 278,272 366,444
Percentage 12.2% 16.0%

 
Candidate Senator
Robert Alphonso Taft Sr.
University President
Harold Edward Stassen
Home state Ohio Minnesota
Delegate count 280 100
Contests won 1 1
Popular vote 594,439 67,508
Percentage 26.0% 3.0%

     Bush      Dewey      Taft      Stassen      Various

Previous Republican nominee

Thomas E. Dewey

Republican nominee

Vannevar Bush