Ken Paxton, President Donald Trump's scandal-plagued pick in the Texas Senate race, boasted that more than 700 people turned out for his first and only campaign rally — but got fact-checked on the real number of attendees.The Texas attorney general hosted a rally at the University Draft House in McAllen, Texas, which had a "modest audience, topping off at 100 attendees," myRGV.com reported. In a post on X, Paxton's campaign had claimed 763 peopl…