In what way will we have the first male spouse of a US president? Will it be by virtue of having a straight female president or having a gay or bisexual male president? For this person to count as the first spouse, they need not be legally married to the president as long as they hold themselves out as the president's spouse to the public. For somebody to count as president, they must serve in the office of president, acting president will not count for this role.
Should there be a dispute, the rules provided will control over the answer to the question itself. While, the question is intended to provide an easy way for people to bet on their beliefs, it is not the end all be all, and all traders should look at the rules. Please don't hesitate to ask clarifying questions in the comments. In the unlikely event of significant ambiguity regarding whether the resolution criteria have been met. I reserve the right to resolve a question to a percentage that I deem fair. I will give notice before I do this.
Update 2025-14-01 (PST): - For the purposes of determining a President's gender, we will use the gender the President identifies with at the time of inauguration. (AI summary of creator comment)
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3.00@Quroe gender the president identified with when inaugurated. Specifically, the pronouns that the president uses at inauguration. Should the president who has a First Gentleman use neither He/Him pronouns nor She/Her pronouns, the market will resolve N/A. As to the gender of the First Gentleman, the only thing that matters is that the significant other holds themselves out as "First Gentleman".
@BrunoParga This would not have counted as James Buchanan did not hold himself out to the public as the husband of William Rufus King. Additionally, it is a note that Harriet Lane would also not count as the first spouse for this question as James Buchanan and her did not hold themselves out to the public as married. This question focuses on the spouse of the president, not the office of the first spouse. Though there hasn't been a distinction between the two in over 100 years, only the spouse of the president would qualify as the first spouse.
@AaronSimansky gotcha, thanks. You've already clarified the answer, but just to restate the question - it is conceivable that there could be a First Gentleman who's the son of a widowed President, for example. As you've defined the question, this situation wouldn't count.
@BrunoParga no, that would not count. I am only counting people who serve as first gentlemen in the modern practice of the position (i.e. the spouse of the president)