Congress is getting closer to legislation against TikTok.Shares of Snap (SNAP 6.97%) were gaining today as Congress appeared to move a step closer to banning TikTok in the U.S. or forcing its parent company, China-based ByteDance, to sell the rights to operate the popular social media app in the U.S.While there was no company-specific news out on Snap, investors believe that a setback for TikTok would be beneficial to Snap, and the stock rose 7.1% on that logic as of 12:36 p.m. ET. A loss for TikTok is a wi ...