The Department of Justice is suing Texas over the state's new abortion law that prohibits abortions after six weeks, well before many women even know they're pregnant. The lawsuit argues the law is unconstitutional under long-standing Supreme Court precedent. It was filed last week in federal court in Texas, but could go all the way to the high court within weeks. Josh Blackman, a constitutional law professor at South Texas College of Law Houston, discusses the DOJ lawsuit and what it could mean for other abortion laws across the country.