WATCH: Trump hails U.S. exceptionalism, warns of communist 'threat' in speech at Mount Rushmore

Key Points:

• President Donald Trump marked the 250th anniversary of American independence with a speech at Mount Rushmore, emphasizing American exceptionalism and warning of communism as a grave threat, likening it to historic crises like World Wars and 9/11.
• Trump's speech contrasted with the traditionally unifying Independence Day addresses of past presidents, evoking Cold War-era Red Scare rhetoric and highlighting current political polarization.
• The holiday celebrations faced challenges from a severe heat wave across much of the eastern U.S., leading to cancellations and adjustments of events in cities like Philadelphia and Washington, D.C.
• In New York, Democratic Socialist Mayor Zohran Mamdani delivered a more reflective and inclusive message about America's contradictions and ideals, implicitly countering Trump's divisive tone.
• Public sentiment toward the 250th anniversary is mixed, with about 40% of Americans feeling proud according to a recent survey, while many express concerns over political division, healthcare, and the nation's future.