CA AG on suing Trump: ‘First-year law student could argue this case’

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California Attorney General Xavier Becerra joins Lawrence after he and 15 other state attorneys general sued to block Pres. Trump's emergency declaration to build the border wall. Fmr. Sen. Claire McCaskill and fmr. Senate staffer Adam Jentleson join Lawrence to react to that and Sen. Lindsey Graham's defense of the president.