we look at a collection of clifford berriman's political cartoons from the early 20th century. >> clifford berriman continued to draw for "the washington evening star" for the next 42 years. his cartoons appeared almost daily. usually on the front page of the paper. very prominently placed. he had quite an ill plus truss career. >> watch "american history tv" every weekend on c-span3. >>> each week, "american artifacts" takes you to museums and historic places to learn about american history. next, we tour the presidential vehicles collection at the henry ford museum in dearborn, michigan. transportation curator matt anderson shows us cars used by presidents truman, eisenhower, carter and reagan, and the lincoln continental that john f. kennedy was riding in when he was assassinated. >> my name is matt anderson and i'm curator of transportation here at the henry ford. we are inside the henry ford museum of american innovation. just outside our driving america exhibit, where we look at the history of the automobile in the united states. we're actually standing in front of a series of presid