Continued from page 1

Other possible successors include politicians, such as former Arkansas Gov. Mike Huckabee, 53, or Alaska Gov. Sarah Palin, 45, both of whom campaigned unsuccessfully for the White House last year.

“Huckabee is doing an interesting thing with this TV show,” said Mr. Lindsay, referring to Mr. Huckabee’s weekly Saturday talk show on the Fox News Channel, “and building his fan base.

“He’s got that sort of cosmopolitan air, and he appeals to various bases. He plays the bass guitar, and he also goes hunting.”

Other famous evangelicals who have drifted in and out of nationwide exposure include the Rev. Kirbyjon Caldwell, 55, a mentor to former President George W. Bush; apologist and philosopher Ravi Zacharias, 62; rock band U2 vocalist Bono, born Paul Hewson; Ethics and Religious Liberty Commission President Richard Land, 62; Sojourners President Jim Wallis, 60; evangelist Franklin Graham, 56, the eldest son of Billy Graham; and the Rev. Joel Hunter, 60, an evangelical megachurch pastor from Florida.

“There’s no one with quite the niche Dobson has,” said Mr. Land, who also made Time magazine’s list. “He’s not a minister but a psychologist. That puts him in a unique category. No one person will succeed him. You’ll see a broader group of leaders with their own constituencies, but not a narrow band.”

But, he cautioned, “Anyone who thinks evangelicals are going away as a social force is smoking something illegal.”