Trump's military guard may face legal hurdles
CNN's Barbara Starr explains that President Trump may face significant legal hurdles if he wants to send the military to guard the US-Mexico border.
01:32 - Source: CNN
Trump's border wall 15 videos
US President Donald Trump (C) is shown border wall prototypes in San Diego, California on March 13, 2018. / AFP PHOTO / MANDEL NGAN        (Photo credit should read MANDEL NGAN/AFP/Getty Images)
Trump's military guard may face legal hurdles
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Trump orders National Guard troops to border
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A member of the Arizona National Guard talks on the phone on April 9, 2018 at the Papago Park Military Reservation in Phoenix.
Arizona deployed its first 225 National Guard members to the Mexican border on Monday after President Donald Trump ordered thousands of troops to the frontier region to combat drug trafficking and illegal immigration. "The Arizona National Guard will deploy 225 members of the Guard today to support border security measures," the state militia said in a statement.
 / AFP PHOTO / Caitlin O'Hara        (Photo credit should read CAITLIN O'HARA/AFP/Getty Images)
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A group of Central Americans crossed into Mexico in March as part of a migrant "caravan" heading to the United States border.
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Trump touts wall prototypes in San Diego
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