Divisions in the United States over gun control will be amplified in the run up to November's presidential election. That has been particularly stark in the state of Tennessee. A year ago a shooting at a school in the state capital Nashville that left three nine-year-olds dead sparked protests in the legislative building.
Democrat representative Justin Jones, megaphone in hand, backed the protestors' calls for tighter controls and was then expelled.
This week in Tennessee a gun law was passed, but not one that makes it more difficult to carry weapons.