[See video cross-posted at NewsBusters.] According to Chris Matthews, the American Revolution is an example of liberalism in action, on par with fighting for gay marriage. In a new Lean Forward ad, the Hardball host appeared at Philadelphia's Independence Hall. Matthews equated, "It took twenty two months of men debating in this room to achieve the Declaration of Independence. Progressive change takes time." Claiming the ending of slavery as a "progressive" cause, Matthews continued, "Abolition would take a great Civil War, but it came." Of course, it was the Republican President Abraham Lincoln and Republicans in Congress who freed the slaves and then passed the 13th, 14th and 15th Amendments to the Constitution. Democrats opposed these civil rights actions. The host lectured, "Liberalism always wins eventually, just as it did here in Philadelphia, in the sweltering summer of 1776."