I remember Limbaugh attacked Pat Buchanan from the Left when Buchanan was running for the presidency.
Rush would dispute the "from the Left" part.
Reagan-era faith in free markets was strong and Buchanan's protectionism was seen as the policy supported by labor unions and Democrats close to the unions.
"Reagan-era faith in free markets was strong and Buchanan's protectionism was seen as the policy supported by labor unions and Democrats close to the unions."
Evidently you don't remember how Reagan dealt with trade:
The Reagan Record On Trade: Rhetoric Vs. Reality