Former President George W. Bush had some advice for former President Bill Clinton on becoming a grandfather.
The two appeared together Monday to announce the Presidential Leadership Scholars program, a partnership between the Clinton, Bush, George H.W. Bush and Lyndon B. Johnson presidential centers. (Read more about the program in this HuffPost blog by George W. Bush Presidential Center President Margaret Spellings and Bruce Lindsey, Chairman of the Board of the Clinton Foundation.)
During the announcement, Clinton received an unexpected call, pulling his cell phone out and noting "only two people have this number, and they're both related to me."
"I hope I'm not being told I'm about to become a premature grandfather," Clinton joked.
Bush said "we all hope for the very best for Chelsea" and offered up some grandfatherly advice to Clinton.
"It's going to be an awesome period for you. Get ready, also, to be, like, the lowest person in the pecking order in your family," Bush said.
Bush became a grandfather when his daughter, Jenna Bush Hager, gave birth to her daughter Margaret Laura 'Mila' Hager in April.
Watch Bush give advice above.