The campaigns of Marco Rubio and Ted Cruz lashed out at Republican front-runner Donald Trump over the weekend for the billionaire candidate's refusal to denounce an implicit endorsement from former Ku Klux Klan leader David Duke.
Trump was asked Sunday on CNN's "State of the Union" to comment on the support from the former KKK Grand Dragon and other white supremacists after Duke told his radio followers this week that a vote against Trump was equivalent to "treason to your heritage."
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