Via The Trader’s Crucible; http://traderscrucible.com/2011/07/11/the-cluelessness-of-democrats/
Otherwise the graph will only allow misinformation to be spread and be less than useful.
Put a different spin on it and a significantly relevant timeline and the true state of affairs can be gauged. Not including such essential information is disingenuous and misleads to the extent that such untruths become clear public knowledge. And once that proliferates even the most courageous attempts at reducing the fog of politics cannot succeed.