With many current polls oversampling dems by 10 percent when the likely voters will most like be even or +1 or2 for pubs, Obama is still only up by 3 percent on average. The undecideds always break big time against the Incumbent. This alone will most likely give Romney a 4 to 5 percent extra vote on election day. That doesn't even include the adjustment for accurate voter turnout. At this rate Obama is going to get crushed. It looks like Romney is going to get about 51-53 percent of the vote. This is before the debates where Obama will be awful at best if he does as well as his other interviews.
Wow, that's a nutty way to look at this. Democrats are "oversampled" because there are more folks affiliating with Democrats with Republicans. This has been verified by polls using a broad spectrum of sampling. Do you understand how statistical analyses work?
BTW, the polls that skew toward Romney have one thing in common--they use robo-calls, and they do not call cell telephones.
They only contact households that still have landlines, which tend to be older, white, and rural. Those polls effectively ignore about 35% of the voting population.
Do some research, for God's sake.