ShareTweetFlip David Horowitz, the 80-year-old conservative writer and founder of the Dave Horrowitz Freedom Center, was banned from Twitter this evening with no explanation from the big tech platform. Twitter has been in the midst of a purge over the past 24 hours, banning multiple parody accounts and an account that chronicled instances of violence against supporters of President Donald J. Trump last night. Tonight they continued their censorship spree by banning Horowitz, who is widely respected as an intellectual on both sides of the aisle. Horowitz is a conservative writer and commentator who has written dozens of books, including...