Who approved President Trump to go on stage in Butler, PA at 6pm knowing there was a sniper in the area? Senator Marsha Blackburn is demanding answers. @MarshaBlackburn @mschlapp https://t.co/sMeZNjfemk https://video.twimg.com/ext_tw_video/1837135354781945856/pu/vid/avc1/1280x720/JgiiTY5esqmHYU0p.mp4?tag=12