Donald Trump will be the first sitting US president to watch an NBA Finals game live during the upcoming matchup at Madison Square Garden.The New York Knicks face the San Antonio Spurs in Game 3 while maintaining a two-game lead in their historic playoff series.Security measures by the NYPD and the Secret Service have forced the relocation of local watch parties to Bryant Park to ensure safety.Tickets for the event have climbed above 6,000 dollars as fans debate the impact of the presidential visit on the team's championship quest.