Will Ferrell Brings Back Bush Impersonation, Slams Jon Stewart

Will Ferrell dusted off his George W. Bush impersonation Sunday night to raise money for autism education. The cause, Comedy Central's "Night of Too Many Stars: An Overbooked Benefit For Autism Education," was started by "Saturday Night Live" writer Robert Smigel, whose son is autistic. Ferrell, as Bush, shared reflections of his legacy with host Jon Stewart.

To donate to the New York Center for Autism & Comedy Central's Night of Too Many Stars, click here.