Republican presidential candidate Donald Trump addresses a rally at Millington Regional Jetport on February 27, in Millington, Tennessee.
Rubio calls Trump 'unelectable' after KKK comments
Donald Trump is struggling to shake off a controversy after he failed to disavow former Ku Klux Klan grand wizard David Duke during an interview on CNN. CNN's Sara Murray reports.
04:50 - Source: CNN
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Republican presidential candidate Donald Trump addresses a rally at Millington Regional Jetport on February 27, in Millington, Tennessee.
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NEW YORK, NY - JULY 23:  Anthony Weiner, a leading candidate for New York City mayor, stands with his wife Huma Abedin during a press conference on July 23, 2013 in New York City. Weiner addressed news of new allegations that he engaged in lewd online conversations with a woman after he resigned from Congress for similar previous incidents.  (Photo by John Moore/Getty Images)
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