Bill Clinton takes aim at Trump's wall while stumping for Hillary in N.J.

PATERSON -- Trapped in traffic after an overturned tractor trailer accident on the Tappan Zee Bridge Friday, Bill Clinton arrived an hour late to a Paterson rally for his wife Hillary Clinton. The former president quickly seized on the incident as a "metaphor for the election," using it to attack Republican front-runner Donald Trump. "It's bridge-building,…