North Carolina ? Billy Graham’s work as a pastor to presidents is coming to an end, but he is praying for Barack Obama as the nation’s next leader begins his work, Graham’s son said Friday on the ailing evangelist’s 90th birthday.

Franklin Graham said in an interview that his father’s mind remains sharp even as his body continues to fail. But the preacher who has counseled every president beginning with Eisenhower is not in line to mentor Obama.

“My father feels like his time and day for that is over,” Franklin Graham said. “But he would certainly like to meet (Obama) and pray with him.”