Masanori Murakami became the first Japanese player to appear in an American major league baseball game, coming the mound during the 8th inning as a relief pitcher for the San Francisco Giants in their game at Shea Stadium against the New York Mets. During his brief first appearance, "Mashi" Murkami, formerly of the Nankai Hawks of Japan's Pacific League, struck out two players and allowed one single in his team's 4-1 loss to the Mets.  After he proved to be a successful player during the remainder of the season, the Nankai Hawks would demand to have him back; ultimately, the Giants and the Hawks would agree that Murakami could play the full 1965 National League season and then would have to return to Japan.
Only two months before the scheduled election, the delegates to the New York State Democratic Convention nominated U.S. Attorney General Robert F. Kennedy as their candidate for U.S. Senator, favoring him 968 to 153 over Congressman Samuel S. Stratton. On the same day, the Liberal Party of New York nominated Kennedy as its candidate as well, while the Republican Party of New York renominated the incumbent U.S. Senator, Kenneth Keating. Kennedy was a resident of Massachusetts rather than New York, but New York law did not have a residency requirement for its candidates for the U.S. Senate. Later in the day, U.S. Senator Strom Thurmond of South Carolina introduced a proposed amendment to the United States Constitution that would require that a U.S. Senator to meet the same residence requirements as a voter "in the state he represents", commenting that "Recent occurrences have negated the clear intention of the Constitution. This circumstance should be remedied."