April 29, 2017 11:48 pm President Trump Marks 100th Day in Office With Rally in Pennsylvania President Donald Trump marked his 100th day in office by holding a rally in Harrisburg, Pennsylvania Saturday night. NBC10’s Lauren Mayk has the highlights from the event. US & World Videos 1:41 11-year-old cancer patient receives floods of motivating letters from strangers near and far 1:43 An Ocean City boardwalk hotspot continues to delay reopening after a series of hold-ups 0:53 One of Philly's most popular cheesesteak spots is set to reopen Wednesday 0:30 Ford is under investigation after partially automated driving system was used in two deadly crashes 0:22 Police say new video shows a group of thieves stealing American flags in Lehigh County