WASHINGTON, DC - AUGUST 29: Department of Justice Chief of Staff Matt Whitaker (R) participates in a round table event with the Joint Interagency Task Force - South (JIATF-S) foreign liaison officers at the Department of Justice Kennedy building August 29, 2018 in Washington, DC. Based in Key West, Florida, the JIATF-S is tasked with stopping the flow of illicit drugs with the cooperation of other agencies and international partners, including Brazil, Canada, Chile, Colombia, Dominican Republic, Ecuador, El Salvador, France, Honduras, Mexico, the Netherlands, Panama, Peru, Spain, Trinidad and Tobago and the United Kingdom. (Photo by Chip Somodevilla/Getty Images)
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Whitaker's controversial past with Iowa senator
When Iowa State Senator Matt McCoy learned Donald Trump had appointed Matthew Whitaker to be acting attorney general of the United States, he was aghast -- he believes Whitaker was behind a politically motivated prosecution that was personally "devastating" to him. CNN's Drew Griffin reports.
4:33 • Source: CNN
Politics of the Day 14 videos
WASHINGTON, DC - AUGUST 29: Department of Justice Chief of Staff Matt Whitaker (R) participates in a round table event with the Joint Interagency Task Force - South (JIATF-S) foreign liaison officers at the Department of Justice Kennedy building August 29, 2018 in Washington, DC. Based in Key West, Florida, the JIATF-S is tasked with stopping the flow of illicit drugs with the cooperation of other agencies and international partners, including Brazil, Canada, Chile, Colombia, Dominican Republic, Ecuador, El Salvador, France, Honduras, Mexico, the Netherlands, Panama, Peru, Spain, Trinidad and Tobago and the United Kingdom. (Photo by Chip Somodevilla/Getty Images)
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Whitaker's controversial past with Iowa senator
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Five months later: Victims of the deadly US strike on an Iranian school
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<p>Trump jokes that not everyone liked Lindsey Graham and he was a tough cookie.</p>
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Trump says Sen. Graham was a "tough cookie."
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<p>Sen. Darline Graham and other family members mourn at the casket of Sen. Lindsey Graham during a tribute at the US Capitol</p>
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Family members mourn at casket of Sen. Lindsey Graham
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<p>Majority Leader Sen. John Thune told mourners during a tribute at the US Capitol that Sen. Lindsey Graham "spoke up" if he believed he was in the right </p>
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Sen. John Thune on Sen. Lindsey Graham: 'He spoke up'
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<p>Vice President JD Vance presents a wreath by Sen. Lindsey Graham's casket. The wreaths represent condolences from the executive branch, the Senate and the House, respectively.</p>
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Vice President JD Vance places a wreath near Sen. Lindsey Graham's casket
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