>I was curious if i can take a picture or whether i have to have physical printed tickets?
>Or do i use my phone to scan tickets on my screen?
I went to a couple during the 2016 campaign. The first time, they didn't actually scan the barcode or check my ID or anything. A guy just glanced at it, "Yup, you're okay. You can go in." The second time they didn't even ask to see it. I think it was more about estimating seating requirements than anything else. If you just show them the email (or whatever it was, don't remember) on your phone and explain that you don't have a printer they'll probably let you in.