Via TalkingPointsMemo, Magellan Strategies has a new poll showing President Obama under absolutely no threat from possible primary challengers in New Hampshire in 2012:

Magellan 2012 NH Dem primary poll.png

Not that either of them are likely to challenge Obama: Howard Dean has said he won't challenge Obama and that a Democratic primary would be a "bad thing for the county," while Clinton has said she won't run either, and that secretary of State will be her "last public position."

Realistically, no serious challenger to Obama is likely to arise.