The Knicks have cancelled all watch parties outside of MSG due to the President’s attendance for Game 3
https://www.cbsnews.com/news/security-trump-madison-square-garden-nba-finals-knicks-spurs/
A hard closure is expected around the entirety of Madison Square Garden. Officials are planning for no watch parties, no vehicle access and no pedestrian travel through the secured area, which sits in a busy part of Midtown Manhattan and is above a major transit hub. CBS New York reported that thousands of fans attended a pair of watch parties for Game 1 on Wednesday night.
The Seventh and Eighth Avenue corridors around the arena are expected to be closed.