The only context I have for that is a 2014 tweet where he said, “Anti-LGBT attitudes are terrible for people in all sorts of communities. They linger and oppress, and we need to stamp them out, ruthlessly.” Do you have that other link?
I've read he is homosexual and married to a man. Not knowing much about the fella, is it possible, as a younger man, he only aligned with the fiscal conservatism of the Republican party (hence why he interned for a Republican), but could no longer support them as that party grew more into what we know now?
I don't know if that can/should/whatever be used against him as it appears Mr. Barro (for some reason I'm tickled pink I get to type a Downton Abbey character's name) has become critical of the Republican party and aligns more with the Democrat's platform.
Whelp, now I'm hungry again.