Because Blue was always the Republican  color until 2000, when the media or Democrats decided  to change it, we all know red is a communist color. and blue the conservative  color ,(I am SUPRISED) the Republicans  didn't do any thing about it. IT HAS ONLY BEEN fifteen YEARS(The System Isn't Broken It's Fixed)( I SAY TAKE BACK THE Blue NOW) Don't take my word for it check   Wikipedia ( Red states and Blue States)  Ray Sales