If you look closely at the upper left of the first picture, you can clearly see this audience is watching Trump speak last night before the fireworks. The second picture is pulled back a little further to show the rest of the audience. Draw your own conclusions.
Replying to @LaNaehForaday@universeodon.com
Here is the speech playing and beside the fact there is no one in the audience, Trump gaffs in the first ten seconds
....Tonight we come together for one of the most joyous, and glorious milestones of all times, the -toofoh- and you know what that is... the 2-5-0. The two hundred and fiftieth anniversary of....
https://video.twimg.com/amplify_video/2073610012232908801/vid/avc1/1280x720/CZU8NbtwTa1YvPvL.mp4