Quote from Tsing Tao:
I dunno. Carter was in a similar pickle to where Obama is and it didn't work out all that hot for him.
True,But Carter had to spend money and time fighting Ted Kennedy in in a primary.If Obama had another drawn out primary with Hilary it would have cost his campaign hundreds of millions of dollars and a lot of votes in the general election
Having the advantage of not having to spend money on a primary ,travel and other expenses ,avoiding getting slammed and having division in your own party etc is a few of the reasons incumbents get re elected 70 % of the time and the best candidates(Christie) wait until they wont be facing an incumbent President to run