Even if you have Global Entry be sure to download the Mobile Passport Control app and sign up. It's free. Often times the MPC line is quicker at U.S. Customs than the Global Entry line. Saves you a ton of time at the airport. Safe travels! https://www.cbp.gov/travel/us-citizens/mobile-passport-control
Discussion
Mobile passport is such a glitch
How so? You're still required to have your physical passport to show the Customs agent. The app sends all your documentation electronically and the Mobile Passport Control lines at the airport are often the shortest and fastest. Usually faster than Global Entry.
Yes I am agreeing. By glitch I mean life hack. I almost always beat my wife who has global entry.