Police keep a close watch on the building in Philadelphia where Democrats are preparing to gather to name Hillary Clinton as their party's nominee for president. Rough Cut (no reporter narration).
ROUGH CUT (NO REPORTER NARRATION). Security was tight on Sunday (July 23) around the Wells Fargo Center with roughly 50,000 people expected in Philadelphia for the Democratic National Convention, where presidential candidate Hillary Clinton and her vice-presidential running mate Virginia Senator Tim Kaine are expected to be formally nominated as their party's presidential ticket in the November election. As officials made final preparations to host the opening session, police kept a tight watch outside on all traffic into the center. Meanwhile, demonstrators who support a variety of causes marched through the city. One of the largest demonstrations called for more action to prevent climate change and promote sustainable energy sources. Another demonstration featured supporters of rival Democratic candidate Sen. Bernie Sanders, who called carried signs saying that Sanders had a better chance of defeating the Republican candidate, Donald Trump, in the general election.