Former President Donald Trump picked up right where he left off in his return trip to Butler, Pennsylvania, on Saturday for a campaign rally. The return to Butler was much anticipated and marked the first time Trump had visited since the July 13 assassination attempt. Saturday reports indicated as many as 60,000 supporters of the president had flooded the town — which has a population of roughly 13,500 people — to join the rally. Trump began the rally in the usual Trump fashion with a witty one-liner referencing a well-known graph. For those unfamiliar, at the time of the July 13 shooting, T…