Rush Limbaugh said Monday he does not believe Donald Trump has flip-flopped on deporting the 11 or 12 million immigrants in the country illegally because he, Limbaugh, never took Trump’s deportation proposal seriously in the first place.

Limbaugh’s statement came in an exchange with an angry caller who criticized the radio host for downplaying the change in Trump’s thinking concerning deportations. Immigration is Trump’s number-one issue, the caller said, and during the primaries Trump repeatedly slammed GOP rivals who opposed deportations.