President Obama's approval rating has hit a new low according to a poll released Wednesday, a troubling sign for the administration as it faces a number of second-term challenges.

A new Wall Street Journal/NBC News poll finds that 42 percent approve of the president's job performance, a drop of five points from earlier this month. Fifty-one percent disapprove of Obama, tying his record negative mark.

The poll also finds that Obama’s personal rating is underwater for the first time, with 41 percent holding a favorable view to 45 percent unfavorable.

The survey comes as the Obama administration faces a slew of controversies fresh off a tough fiscal fight with Republicans that led to a government shutdown and brought the U.S. within hours of defaulting on its debt.

Obama is now facing a public uproar over the glitch-plagued rollout of new insurance exchanges, a centerpiece of Obamacare, as well as congressional concern and international criticism over new spying allegations for the National Security Agency.

The poll found all those issues, the shutdown, Obamacare and the NSA, contributing to the president’s slide.

Voters by a 41- to 21-percent split said they had a less favorable view of Obama after the 16-day partial shutdown of the federal government. More Americans, though, continue to blame GOP lawmakers for the shutdown by a 38 to 23 split, with 36 percent blaming both Obama and Republicans.

Overall, Republicans fared worse than Obama, with GOP lawmakers at a 53-percent unfavorable and 22-percent favorable rating.

The poll also finds that Obamacare is less popular than earlier in the month. Thirty-seven percent say the law is a good idea to 47 percent who say it is not. That’s down from a 38 positive, 43 negative split.

The website registering consumers in new insurance exchanges has been hit with technical glitches. President Obama has said he is frustrated and vowed to fix the problems quickly. But critics say the problems highlight the unworkability of Obama’s signature domestic achievement.

Thirty-seven percent of respondents said the glitches were likely a short-term issue that could be resolved, with 31 percent believing there were larger problems with the overall law itself. Thirty percent were unsure.

The poll, though, also highlights Congress' continued unpopularity, with nearly two-thirds of voters saying they would like to replace their lawmaker.

The poll was conducted from Oct. 25 to 28 and has a 3.5-percent margin of error.