She subsequently opposed the Defense of Marriage Act, arguing that “marriage is a bond of love, and it’s spiritual and metaphysical in nature. It’s a sacred bond, and that is not an area where government should be involved.”
https://en.wikipedia.org/wiki/Tulsi_Gabbard
Not saying it will be her, but the odds are overwhelmingly good.
Trump doesn't have to agree with her...only to agree to listen to her.
And if he does that, he will peal away the centrist Democrats...and win the General.