Definitely has a “progressive” slant in some of the descriptions I see on the web. “Diversity” and “social justice” seem more emphasized than excellence and achievement. Far from a conservative institution, I would guess..... though it may be hard to find any slightly traditional schools around DC, I don’t know.
An Episcopal school with female minister chaplains, the school is definitely on the “progressive” wing of the Episcopal churches:
Chaplains: The Rev. Patty Alexander and the Rev. Sally Slater