She is seeking spousal benefits following her late partner's death.
The Supreme Court justices recently posed with a hate group leader.
Bernie Sanders fired back on Twitter, joined by worried progressives.
"LGBTQ+ people deserve a government that protects us and sends the message that we are not broken. Because we're not."
Lawyers representing anti-gay employers rolled out a series of novel legal arguments before the court.
They were staging an action in response to a trio of hearings before the Supreme Court.