Dampen

As US President Donald Trump approaches his 79th birthday tomorrow, his aspiration for a grand military parade in Washington is potentially threatened by thunderstorms. Weather forecasts predict the possibility of lightning coinciding with a display that will feature nearly 6,000 troops, 50 helicopters, and 150 armored vehicles, all rolling through the capital for a crowd of enthusiastic spectators. Trump's previous encounters with tumultuous weather have been less than favorable; his inauguration celebration in January…