Do we have any good political dynasties? The Adamses are the closest I can think of and that's not really saying much. (No benji, but the Roosevelts are *rasberry*.)
Nationally, not really outside of the Bushes, but at the state and local levels there are plenty. (Mayor of Chicago for example.)
Udalls, Harrisons, Tafts, Romneys, Doles, Rockefellers all have had decent runs. Chafees, Gores, Cuomos.
The original Clintons: George, DeWitt and George.