1964 Democratic presidential primaries were the selection process by which voters of the Democratic Party chose its nominee for President of the United States in the 1964 U.S. presidential election . Incumbent President Lyndon B. Johnson was selected as the nominee through a series of primary elections and caucuses culminating in the 1964 Democratic National Convention held from August 24 to August 27 , 1964 , in Atlantic City , New Jersey
1964 Democratic National Convention
1964 Democratic National Convention
1964 Democratic Party presidential primaries