Having already famously portrayed former President George W. Bush in various comedy sketches, Will Ferrell is now setting his sights on another former commander-in-chief.

Sources tell Variety Ferrell is attached to star as President Reagan in the Black List script “Reagan.”

Penned by Mike Rosolio, the story begins at the start of the then-president’s second term when he falls into dementia and an ambitious intern is tasked with convincing the commander-in-chief that he is an actor playing the president in a movie.

The script was so popular following its announcement on the Black List, an annual catalog of the top unproduced scripts in Hollywood, that a live read was done recently done in March starring Lena Dunham and John Cho.

Ferrell will produce along with production banner Gary Sanchez Productions. The package currently is without a director, but will soon be shopped to studios.

Ferrell is no stranger to political humor having portrayed former President Bush several times over the years on “Saturday Night Live.” He would eventually take the impression to Broadway in the play “You’re Welcome America.” He also starred in the political comedy “The Campaign” opposite Zach Galifianakis.

Best known for his live-action short films, “Reagan” marks Rosolio’s big-screen debut.

Rosolio is repped by UTA and Kaplan/Perrone and Ferrell is repped by UTA and Mosaic.