Why do you say that?
“Why do you say that?”
Because after listening to Rush for 30 years it does not sound like his style.
Others agree:
https://checkyourfact.com/2021/02/03/fact-check-rush-limbaugh-letter-donald-trump-thanking-last-four-years/
I received the same message, virtually word for word about a month ago, and it had no attribution to Rush.