The most common question about the senator is whether he's too old for the job.

NPR: Campaign Frenzy in New Hampshire

Self-employed electrician Tony Levy from Wednesfield in the Black Country says that at 61 he's too old to be employed but too young to retire.

BBC: Longer careers pose challenges for ageing population

John McCain, claiming he's too old.

CNN: Commentary: Forget an Obama-Clinton or Clinton-Obama ticket

He'd like kids but fears he's getting too old to be around for long enough.

FORBES: Magazine Article

He voted in the conclave that elected Benedict XVI as Pope in 2005 but, as he turned 80 last August, he will be too old to vote for Benedict XVI's successor.

BBC: Papal conclave: Cormac Murphy-O'Connor's insider's view

He's 22 years old now, living in San Francisco not too far from the headquarters of Apple Computer, in fact.

NPR: Marketplace Report: Hacking Apple's iCode

Republican mayoral candidate Joseph Lhota, who worked at City Hall for the mayor's predecessor, Rudolph Giuliani, said he, too, would "go back to the old way" of offices.

WSJ: Murky Future For 'Bullpen'