| Year: | 1948 |
| Party: | Republican |
| Date: | June 21–25, 1948 |
| Image Size2: | 125 |
| Venue: | Convention Hall |
| City: | Philadelphia, Pennsylvania |
| Presidential Nominee: | Thomas E. Dewey |
| Presidential Nominee State: | New York |
| Vice Presidential Nominee: | Earl Warren |
| Vice Presidential Nominee State: | California |
| Previous Year: | 1944 |
| Next Year: | 1952 |
The 1948 Republican National Convention was held at the Municipal Auditorium, in Philadelphia, Pennsylvania, from June 21 to 25, 1948.
New York Governor Thomas E. Dewey had paved the way to win the Republican presidential nomination in the primary elections, where he had beaten former Minnesota Governor Harold E. Stassen and World War II General Douglas MacArthur. In Philadelphia he was nominated on the third ballot over opposition from die-hard conservative Ohio Senator Robert A. Taft, the future "minister of peace" Stassen, Michigan Senator Arthur Vandenberg, and California Governor Earl Warren. In all Republican conventions since 1948, the nominee has been selected on the first ballot. Warren was nominated for vice president. The Republican ticket of Dewey and Warren went on to lose the general election to the Democratic ticket of Harry S. Truman and Alben W. Barkley. One of the decisive factors in convening both major party conventions in Philadelphia that year was that Philadelphia was hooked up to the coaxial cable, giving the ability for two of the three then-young television networks, NBC and CBS, to telecast for the first time live gavel-to-gavel coverage along the East Coast. Only a few minutes of kinescope film have survived of these historic, live television broadcasts.[1]
The party platform formally adopted at the convention included the following points:
| Presidential Balloting | ||||
|---|---|---|---|---|
| Candidate | 1st | 2nd | 3rd | |
| Dewey | 434 | 515 | 1,094 | |
| 224 | 274 | 0 | ||
| 157 | 149 | 0 | ||
| 62 | 62 | 0 | ||
| 59 | 57 | 0 | ||
| 56 | 0 | 0 | ||
| 35 | 0 | 0 | ||
| 19 | 19 | 0 | ||
| 18 | 10 | 0 | ||
| 15 | 1 | 0 | ||
| 11 | 7 | 0 | ||
| 1 | 0 | 0 | ||
| Not Voting | 3 | 0 | 0 | |
Presidential Balloting / 4th Day of Convention (June 24, 1948)
As of 2020, this was the last Republican Convention to go past the first ballot.
Dewey had a long list of potential running mates, including his 1944 running mate, Senator John Bricker of Ohio, Representative Charles Halleck of Indiana, former Governor Harold Stassen of Minnesota, and California Governor Earl Warren.
Dewey chose Warren, who was subsequently nominated by acclaimation.
The Dewey–Warren ticket was the last to consist of two current or former state governors until 2016, when former governors Gary Johnson and Bill Weld ran on the Libertarian Party ticket.