Lyndon B. Johnson is elected to a full term as U.S. president, winning 61% of the vote and 44 states, while Washington D.C. residents are able to vote in a presidential election for the first time, casting the majority of their votes for Lyndon Johnson.

Lyndon Baines Johnson, also known as LBJ, was the 36th president of the United States, serving from 1963 to 1969. He became president after the assassination of John F. Kennedy, under whom he had served as the 37th vice president from 1961 to 1963. A Southern Democrat, Johnson previously represented Texas in Congress for over 23 years, first as a U.S. representative from 1937 to 1949, and then as a U.S. senator from 1949 to 1961.

Presidential elections were held in the United States on November 3, 1964, less than a year following the assassination of John F. Kennedy, who won the previous presidential election. The Democratic ticket of incumbent President Lyndon B. Johnson and Senator Hubert Humphrey defeated the Republican ticket of Senator Barry Goldwater and Congressman William E. Miller in a landslide victory. Johnson won 61.1% of the popular vote which, to date, remains the highest popular vote percentage of any candidate since the advent of widespread popular elections in 1824.

A presidential election is the election of any head of state whose official title is President.