Las Vegas Sun - Photograph : John Walsh

January 21, 2018

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In this Feb. 11, 2014, file photo, Sen. John Walsh, D-Mont., right, and his son Michael leave the Old Senate Chamber on Capitol Hill in Washington, after a ceremonial swearing-in ceremony with Vice President Joe Biden.

AP Photo/Lauren Victoria Burke

In this Feb. 11, 2014, file photo, Sen. John Walsh, D-Mont., right, and his son Michael leave the Old Senate Chamber on Capitol Hill in Washington, after a ceremonial swearing-in ceremony with Vice President Joe Biden.