Rep. Marsha Blackburn, one of the most powerful women in Congress, announced last week that she would seek the GOP nomination for the open Senate seat in Tennessee being vacated by Senator Bob Corker.  Her campaign posted a link to a video of her announcement on Twitter and sought to buy an ad to promote the video. But Twitter, citing "inflammatory language" in the video announcement, refused to sell any ad space.  They deemed a statement by Blackburn on the congressional investigation into Planned Parenthood likely to provoke a "strong negative reaction." Politico: GOP Rep. Marsha Blackburn, who is running to replace retiring Sen. Bob Corker, launched her campaign last week with a video proclaiming herself "a hard core, card-carrying Tennessee conservative." In her announcement video, she boasts: "I fought Planned Parenthood and we stopped the sale of baby body parts. Thank God." Twitter decided the line violated...(Read Full Post)