Conservative talk radio succeed, and still succeeds because it is an outlet for voices that are not heard in the lame stream media. Why do you need a “liberal talk radio”, when you have ABCNBCCBSCNNMSNBCPBSNPR?
Esecially NPR, it is the liberals main radio station, pretty much the same all over the country, so they can get their talking points straight while they are on the way to work if the missed the alphabet network TV shows in the morning.....
To quote Rush, “I _AM_ equal time”.
Similarly, Liberals tried to “do” the “Coffee Party” in response to the popular “TEA Party.” They failed at this as well.
Liberals have no originality because they have no genuine ideas, at least none that are palatable.