On August 17, the New York Conservative Party nominated Donald J. Trump for President.  The state convention was in Jericho, in Nassau County.  Thanks to Independent Political Report for this news.

The Conservative Party was a ballot-qualified party starting in 1962, making it the oldest continuously-qualified minor party in any state.  It has always nominated whomever the Republican Party nominated for president, except in 1964, when the Republican Party refused to allow its presidential elector candidates to accept the nomination of the Conservative Party.  Therefore, in 1964 the Conservative Party had no presidential nominee on the ballot.