UPDATE: Mystery Solved. El Rushbo tweeted that both @RushLimbaugh and @Limbaugh are official Rush Limbaugh Twitter Accounts.
There is some confusion over the @Limbaugh Twitter Handle. On Rush Limbaugh’s Website there is no mention of the @Limbaugh name. Furthermore the @Limbaugh Twitter account is NOT Verified.
Yet the last segment of the Rush Limbaugh Show does mention to use RushLimbaugh, no space, or just use the name Limbaugh. Here’s the clip.
Politico seems to think @Limbaugh is an Official Rush Limbaugh Twitter Account.