What are you basing that on? I'm assuming you didn't personally count the people that were there. So how would you know that Trump's count was wrong? I'm assuming his people would have a better idea as they might have turnstile counts.
This staff member had a window and guessed that about 5,000 were turned away. This validates the number Trump gave, which I realized after I had already given my report. Post 62 said Trump tweeted 10,000 were present and 5,000 turned away. The concern raised in my original post was unwarranted.