In recent history, the GOP has launched character attacks against opponents, like the famous Willie Horton ad against Michael Dukakis in 1988. A conservative billionaire’s proposed strategy against President Obama would push the envelope even further. Mitt Romney condemned the plan, but does that match his actions in the past? Rep. Emanuel Cleaver, D-Mo., and Dana Milbank of the Washington Post talk with Rev. Al Sharpton.May 18, 2012