US mid-term elections: The Republican who changed his mind over guns

Not long ago Republican Phil Scott was one of the most popular governors in America, poised for a comfortable re-election in November. Then, after a possible school shooting was discovered by police in Vermont, he decided to support sweeping gun-control legislation - and has reaped a political whirlwind. 

The Vermont governor stands at a lectern in front of the state capitol building in Montpelier on a grey, blustery April day earlier this year. His wife and various politicians, officials and dignitaries stand behind him. Before him, a motley crowd. Some are cheering; others are angry - and loud.

He's talking about gun control, a subject that touches raw nerves across the US, even in serene, bucolic Vermont. Perhaps especially in Vermont.