What you say? She was the dissenting vote in the appeals court ruling to strike down the Washington D.C. gun ban. How could a nice lefty like that undercut the left?
Atom splitting mind fissionist Henderson bases her dissent on the (extremely wobbly and highly novel) notion that the Bill of Rights in the U.S. Constitution DOES NOT APPLY to Washington D.C. because its "not a state".
I'm sure the residents of D.C., and certain notable press members, like the Washington Post for example, might be very surprised to discover there exist Federal Judges who don't believe the U.S. Constitution applies to them, yet this is exactly what Henderson said.
Naturally, if the U.S. Constitution doesn't apply to actual U.S. citizens living on actual land inside the territorial boundaries of the USA, then by logical extension, it can't possibly apply to NON-citizens OUTSIDE the territorial boundaries of the USA itself. The constitution and BOR isn't a Chinese menu - you don't get to pick and choose what parts you like and don't.
Henderson's novel opinion has completely undercut the left's assertion that vacationers at Club Gitmo should have the full protections of the U.S. Constitution.