Fact is, most people who are Democrats and/or on the left believe everything that Senator McCain and his cheering section says is a lie, and those who are Republicans/rightists think the same of Senator Obama and his ilk. Both groups have long since decided on who gets their vote. Both parties are playing for the 10-20% percent who are undecided or in the middle. Personally, I hope these people get the FactCheck and PolitiFact daily newsletters, so they can judge these claims with more data. My own very unscientific poll says that McCain and the anti-Obama camp are running about 3 to 1 above the opposition in misrepresentations and outright lies, but that doesn't mean the Obamites haven't come up with some real zingers as well.

BTW, did you know that calling various parts of the political spectrum "right" or "left" refers to where different groups sat in the National Assembly during and just after the French Revolution?