Candidates

• Frank Hiscock, U.S. Representative from Syracuse
• Warner Miller, incumbent Senator since 1881
• Levi P. Morton, former U.S. Minister to France (1881–85), U.S. Representative from New York City (1879–81),^{[lower-alpha 1]} and candidate for Senate in 1885

Results

The caucus of Republican State legislators met on January 17, President pro tempore of the State Senate Edmund L. Pitts presided. 20 State senators and 71 assemblymen attended. Ex-Speaker of the Assembly George Z. Erwin (a Morton man) moved that a majority of all Republican legislators should be necessary to nominate, not only a majority of those present, meaning that 48 votes were required instead of 46, which was carried by a vote of 52 to 39. The incumbent U.S. Senator Warner Miller (Half-Breed faction) failed to be nominated by only four votes. Levi P. Morton (Stalwart faction) was rejected by the caucus, as in 1885. A small faction voted for Congressman Frank Hiscock. After the second ballot, Erwin moved to adjourn, which was carried by 48 to 43. The caucus met again on the next day, no choice was made in another two ballots. The caucus met again on January 19 after the joint ballot of the State Legislature, and after twelve more ballots, Erwin withdrew Morton's name and urged the Morton men to vote for Hiscock. On the next ballot Hiscock received one vote more than Miller (47 to 46), but was one short of the previously established majority of 48. On the 18th and last ballot, Hiscock received 50 votes and was nominated. On the next day, Hiscock was elected on the second joint ballot of the State Legislature. Thus, by blocking Miller's re-election, the Republican boss Thomas C. Platt took his revenge for his defeat at the special election in 1881.