Live updates: Johnson warns of more ‘Mamdani’s’ after Trump invokes threat of ‘communism’ in July 4 speech

President Trump marked the nation’s 250th birthday with a late Saturday night speech that blended the championing of American achievements with partisan rhetoric. Trump’s address lasted about 30 minutes — not as long as he promised days before extreme heat and weather impacted the Fourth of July celebrations in Washington on Saturday. After the president…