A case before the US Supreme Court could leave Philadelphia’s anti-discrimination law open to challenges; Bobby Allyn gives the details. NJ Spotlight’s John Reitmeyer discusses how three lawmakers are formulating a legal case against the GOP tax reform. Solomon Jones contends the push for tax reform is an opportunity for the American middle class to come together. Reporter Ronnie Polaneczy joins the show to talk about her Daily News series, “Falling Off the Cliff,” a look at institutionalized neglect for Americans who are disabled. Two women are petitioning Amtrak to provide private spaces for breast milk pumping, reports Emily Scott. Alan Yu brings the story of a group of Princeton researchers who are receiving widespread praise for their work in mapping the universe.