Other studies have found no significant effect in the number of crashes since the first three states legalized marijuana sales.
Kentucky's failed attempt this year illustrates a problem that many states face: Some judges are severely overworked while others don't have enough to do. But fixing that can be politically impossible.
Wednesday's shooting during a congressional baseball practice is the latest example of the increased violence -- both threatened and real -- that is seeping into America's political process.
He was first elected as a 21-year-old. More than a decade later, he has put himself and his border community at the center of the national immigration debate over "sanctuary cities."