The latest NBC News/Wall Street Journal poll finds that the approval rating for Congress has tied its all-time low in the history of the survey and that voters are split on Mitt Romney's selection of Paul Ryan as his running mate. According to the poll, only 12 percent of registered voters approve of the legislative branch's performance. The only other time it was that low was in October 2008, after a major economic collapse. The NBC/WSJ poll also shows that 22 percent of registered voters say that Romney's selection of Ryan makes them more likely to vote for him, while 23 percent say the opposite. The even results suggest that Ryan is having less of an influence on voters than other vice presidential nominees have had on elections. Sarah Palin made 34 percent of voters more likely to vote for John McCain, and 25 percent less likely to vote for him. For Joe Biden the numbers were 24 percent (more likely to vote Obama) versus 16 percent (less likely).