Thousands of Americans flocked to downtown D.C. in "Make America Great Again" hats and patriotic gear displaying Old Glory despite the balmy weather and thunderstorms brewing.

Meanwhile, "No Kings" protests were scheduled in all 50 states to counter Trump's celebration, in cities like New York, Los Angeles, Philadelphia and Boise.

A parade in Washington, D.C., commemorating the 250th anniversary of the armed services and coinciding with the birthday of President Donald Trump, kicked off Saturday with a grand showing of the military's power throughout the National Mall.