If Pete Buttigieg is elected president he would become the first out-gay president, the first not-out gay president being, in all probability, James Buchanan (1857-1861).
Chasten Buttigieg, Mayor Pete’s husband and ace social media practitioner, would become America's first out-gay First Gentleman.
The White House has already housed at least two First Ladies who loved women. Eleanor Roosevelt's long relationship with journalist Lorena Hickock was the subject of Susan Quinn’s 2016 book, Eleanor and Hick: The Love Affair That Shaped a First Lady.