By virtue of having a straight female president

By virtue of having a gay (or bisexual) male president

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.