In a special bonus episode of "The Investigation," co-host Chris Vlasto along with senior reporter Matt Mosk interview ABC News Chief National Affairs Correspondent Tom Llamas about his groundbreaking investigation into Hunter Biden’s business dealings in Ukraine and China during his father's tenure as vice president. Llamas, who traveled to Ukraine and interviewed former government officials and politicians, later approaches the former vice president on the campaign trail, asking him "Was there a clear conflict of interest?"

Follow Kyra on Twitter @kyraphillips

Follow Chris on Twitter @vlasto

Follow Matt on Twitter @mattmosk

Follow John on Twitter @santucci

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The Investigation is produced by ABC Radio.

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