Liberals learn from history all the time. A couple of examples are Bushtard's Iraq War and his two sloppy unpaid-for tax cuts. The Iraq War is now seen as America's biggest foreign policy mistake and Conservatism only has itself to blame. The tax cuts were also stupid mistakes, leading the nation back into Reagan-like debt, after Clinton almost got the nation's finances back in order.
The US is getting back on track, first by undoing the Iraq War mistake, and winding down the other GOP adventures abroad, while raising tax rates on the comfort class to a still-generous Clinton era rate.
So Obama learned to expand the war in Afghanistan to full fledged failure, engage in war in Libya, extend the Bush tax cuts, and increase deficit spending?
It doesn't look good for your side.