Was tempted to address this myself.
If, per Q, no shirts permitted because "threats are called in" beforehand every time,
Then by the same logic if they start calling in threats regarding anyone wearing a 'Trump' shirt,
you're going to have a lot of bare-chested attendees.
Sorry Q, no dice.
This is a decision, but for what purpose I'll leave to others, with this one exception. Perhaps it was becoming too easy for the Left to paint his supporters as 'conspiracy' nutbags? If that's the case, at least own up to building the Q phenomenon in the first place.
Only guessing, but I have faith in the USSS, and the technology at their disposal, to render wearing a T-shirt harmless.
I'm too tired to look it up, but there's a Supreme Court decision upholding someone's right to wear a 'Make Love Not War' (or 'Fuck The War') or some other slogan in a courtroom during the Vietnam War.
Give me a break. Guess next will be no 'I Love Ariana Grande' shirts allowed in at Ariana Grande concerts.
Q - to misquote obama (the fraud), "You built that!"