Thirteen protestors were arrested Thursday, May 20, when they refused to leave Sen. Richard Durbin‘s Chicago office until he agreed to sign a pledge to openly advocate for a transgender-inclusive Employment Non-Discrimination Act.

Durbin is the Senate assistant majority leader and has previously supported the Defense of Marriage Act and the military’s “don’t ask, don’t tell” policy. While he is a cosponsor of ENDA, Durbin has not indicated that gender identity and expression protections must be included in this legislation.

The protestors — who are Durbin’s constituents and members of LGBT Change, Join The Impact Chicago and the Gay Liberation Network — were told he does not sign pledges and then asked to leave the senator’s office. When they refused, they were arrested.

Support the protestors by telling Durbin to fiercely advocate for ENDA by signing their petition.