Monday's action by Arizona's junior senator comes after the Guardian newspaper reported that Flake was among the Republicans who received donations Earl Holt. Hold leads a white supremacist group cited by Charleston, South Carolina, church murder suspect Dylann Roof in an online manifesto.
Flake's press secretary says he will donate the $1,000 he received in 2012 to the Mother Emanuel Hope Fund, which was set up to help the families of the nine victims of last week's shooting.
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