A super PAC supporting Republican Marco Rubio's presidential campaign released a new commercial Monday that slams Donald Trump for his refusal to disavow ex-Ku Klux Klan leader David Duke during a weekend television interview. The ad from the Conservative Solutions PAC opens with CNN's Jake Tapper describing how he asked Trump three times whether he would reject the support of Duke and the KKK. The ad then cuts to Trump, saying, "Well, I have to look at the group."