 There is an added layer of security at the Republicans' gathering. Even before the weekend assassination attempt on Donald Trump, some 4,000 police officers had been scheduled to be here in Milwaukee to provide additional security. Their presence isn't hard to see or feel as one tries to get around anywhere near the convention center. At various checkpoints, I've spoken with officers from Indiana, Oregon, and Ohio. Just a handful of the more than 20 states sending reinforcements. Town Hall News correspondent Bob Agnew in Milwaukee.