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US President Donald Trump shakes hands with US Army Lieutenant General H.R. McMaster (L) as his national security adviser at his Mar-a-Lago resort in Palm Beach, Florida, on February 20, 2017. / AFP / NICHOLAS KAMM        (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
US President Donald Trump shakes hands with US Army Lieutenant General H.R. McMaster (L) as his national security adviser at his Mar-a-Lago resort in Palm Beach, Florida, on February 20, 2017. / AFP / NICHOLAS KAMM        (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)

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    McMaster backpedals on South Korea

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McMaster backpedals on South Korea

On Fox News Sunday with Chris Wallace, H.R. McMaster seemed to have a different opinion than President Trump on who will pay to protect South Korea.

McMaster backpedals on South Korea

On Fox News Sunday with Chris Wallace, H.R. McMaster seemed to have a different opinion than President Trump on who will pay to protect South Korea.