President Donald Trump delivered a Fourth of July address from the National Mall on Saturday, celebrating America's 250th birthday and the nation's founders. The event, however, was delayed by weather in the nation's capital.

Americans were marking the 250th anniversary of the nation's independence amidst an extreme heat wave that brought dangerously high temperatures to the eastern United States. The celebration on the National Mall included a presidential address, a flyover, and a fireworks display.

Taking the stage late Saturday, President Trump spoke of pledging allegiance to the flag and honoring the "immortal patriots of 1776." He also brought up present-day political topics during his speech, promoting his SAVE America Act, which aims to alter election administration, and expressing strong opposition to communism.

The implications of the president's political commentary during a national holiday celebration remain a subject of discussion, particularly with midterm elections approaching. The event also highlighted the challenges of hosting large-scale outdoor events during extreme weather conditions.

During his remarks, President Trump highlighted several historic flags displayed on stage, including one from 1777 and the flag that covered President Abraham Lincoln's coffin. He invited veterans and Medal of Honor recipients onto the stage at various points to salute these historical artifacts.

The planned festivities faced significant disruption due to thunderstorms that hit Washington, D.C. The crowds who had waited for hours in the record heat were compelled to evacuate the National Mall due to the severe weather. At times, the dispersal orders led to confusion among the attendees.

The preliminary high temperature in Washington, D.C., on Saturday reached 102 degrees Fahrenheit, making it the hottest July Fourth on record for the city. This surpassed the previous record of 100 degrees set on July 4, 1919. The extreme heat wave affected much of the eastern United States.

The event, titled "Salute to America 250," aimed to commemorate a significant milestone in American history. The president's decision to incorporate political themes into the celebration has drawn attention, especially given the historical context of the holiday.