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Problems with the health care law -- and perhaps fallout from the recent government shutdown -- are taking a toll on President Obama's public standing.

The president's approval rating hit a low point of 42% in the latest NBC News/Wall Street Journal poll, down 5 points from earlier in October.

The poll said 51% disapprove of Obama's performance, tied for his all-time high.

From NBC News:

"The NBC/WSJ pollsters argue that no single reason explains Obama's lower poll standing.

"Rather, they attribute it to the accumulation of setbacks since the summer -- allegations of spying by the National Security Agency, the debate over Syria's chemical weapons, the government shutdown and now intense scrutiny over the problems associated with the health care law's federal website and its overall implementation."