✌100% once you look up other examples of Trump's handwriting and see that almost all his capital G's look like this.

100%, that's what it is. I fully agree it looks like a lower case q but that's because it's small writing with a thick marker. It sure as heck isn't a lower case g. Would you say the capital R's and B look proper? No, because thick marker. The only reason one would decide that it's a q is because that's what they want to see, not because it's the loqical conclusion.