A group of top legal officials from around the U.S. made a formal push for marijuana banking reform.A new political push for marijuana law reform had an intoxicating effect on Curaleaf (CURLF 13.23%) stock as the trading week came to an end. On Friday, the multi-state operator (MSO) was quite the buzzy title on the exchange, with investors boosting its share price by 13% on the day. That compared quite favorably to the minor (0.4%) gain of the S&P 500 (^GSPC 0.40%) at market close.Banking on changeLate on T ...