It’s been two days now since Rush Limbaugh first challenged President Obama to a duel of words, a debate on issues, and five since the president and his surrogates made Rush the main Democratic Party talking point. Of course, the White House is pretending to stand above such a request from a mere talk radio mouth — no response on the challenge has yet emerged. Yet, Obama’s Press Secretary, his Chief of Staff, and all the Old Media folks that his Chief of Staff instructs on a daily basis in that well known morning strategy session all have been using Rush Limbaugh as a main talking point since the Sunday morning following Rush’s CPAC speech.