Trump has vowed a lengthy July 4 speech during America 250 celebrations as forecasters warn of dangerous heat in Washington, D.C. Here's what to know.

July 4 live: Trump’s Freedom 250 feels the heat as white nationalists march on DC with Confederate flags - Hundreds of uniformed and masked members of Patriot Front march through capital on Fourth of

Fourth of July celebrations are taking place across the nation as the US turns 250, including in Washington, DC, where President Donald Trump delivered a speech. Follow live updates.

Watch President Trump's full remarks at the Salute to America 250 event in Washington, D.C., celebrating the nation's milestone anniversary. The president's speech was delayed as weather in the area forced those in attendance to evacut\ate earlier in the day.