President Trump saluted the flag beside his granddaughter Kai at a heavily secured Madison Square Garden Monday night before settling in to watch his hometown New York Knicks take on the San Antonio Spurs in Game 3 of the NBA Finals. The president, sitting in MSG boss James Dolan’s suite, was loudly booed by some of the Knicks faithful when he was shown on the big screen during “The Star-Spangled Banner,” although a smattering of cheers could be heard as well.