FILE – In this Sept. 13, 1994, file photo President Bill Clinton, center-right, shakes hands with Stephen Sposato as Marc Klaas looks on the South Lawn of the White House in Washington after he signed a $30 billion sweeping crime bill that was six years in the making and included a hotly disputed ban on assault weapons. Sposato’s wife was killed when a gunman invaded the San Francisco law firm where she worked, and Klaas’ daughter Polly was kidnapped and killed. "Today, at last, the waiting ends," Clinton said then. "Today, the bickering stops, the era of excuses is over." Two decades and so many gun tragedies later, the political fallout from that long-gone assault weapons ban still casts a long shadow over Washington. (AP Photo/J. Scott Applewhite, File)