Coming from deeply conservative evangelical culture, I can tell you that to them, she isn't a pastor, she's a woman pastor which a completely different and significantly less respected thing. To us she's just a pastor, which also earns her buckets of disrespect. She's basically unelectable by everyone.
The trans acceptance is nice to hear, but religious leaders melding their position with political leadership is less nice. Clergy should not be allowed to run for public office, no matter what their platform.