Joe Klein in Time has written a detailed analysis of the reasons Barack Obama is leading the race for the White House.

“Barack Obama has prospered in this presidential campaign because of the steadiness of his temperament and the judicious quality of his decision-making. They are his best-known qualities. The most important decision he has made — the selection of a running mate — was done carefully, with an exhaustive attention to detail and contemplation of all the possible angles. Two months later, as John McCain’s peremptory selection of Governor Sarah Palin has come to seem a liability, it could be argued that Obama’s quiet selection of Joe Biden defined the public’s choice in the general-election campaign.”

Read the full analysis here.