Planned Parenthood and blue states challenge congressional legislation defunding abortion providers as unconstitutional bill of attainder in federal court.

Pennsylvania Gov. Josh Shapiro signed onto a lawsuit this week that seeks to restore the use of federal funding at Planned Parenthood health centers in the state. He joins 21 states and the District of Columbia in the action initiated July 29.

Several Democratic-led states have filed a federal lawsuit challenging the Trump administration's effort to cut funding for Planned Parenthood.