President Trump ushered in America's 250th anniversary with a darkly political speech that swerved from the typically apolitical, unifying speeches past presidents have given to mark Independence Day.

President Trump lauded America's storied history on Saturday night in a speech marking the 250th anniversary of its independence, while also praising his war in Iran, railing against "communists," and vowing to restrict mail-in ballots.

Spread by parasitic worms that can infect via a splash of water, schistosomiasis causes debilitating symptoms. It hits kids hard. A board game teaches how to prevent it.

The shake-up is believed to be an effort to ensure the military's loyalty to the Communist Party and its leader, Xi Jinping.

As America turns 250, voters from our Swing Shift project talk about the state of the country. Their views ranged from "uncertain" and "concerned" to "excited" and "cautiously optimistic."