Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

View of the metal fence along the border in Sonoyta, Sonora state, northern Mexico, between the Altar desert in Mexico and the Arizona desert in the United States, on March 27, 2017.
Threatened species like the Sonoran pronghorn or desert bighorn sheep freely cross the border between Mexico and the United States in protected biospheres, but the construction of US President Donald Trump's wall will block their movement in these desert valleys and could drive them to extinction. / AFP PHOTO / PEDRO PARDO        (Photo credit should read PEDRO PARDO/AFP/Getty Images)
View of the metal fence along the border in Sonoyta, Sonora state, northern Mexico, between the Altar desert in Mexico and the Arizona desert in the United States, on March 27, 2017.
Threatened species like the Sonoran pronghorn or desert bighorn sheep freely cross the border between Mexico and the United States in protected biospheres, but the construction of US President Donald Trump's wall will block their movement in these desert valleys and could drive them to extinction. / AFP PHOTO / PEDRO PARDO        (Photo credit should read PEDRO PARDO/AFP/Getty Images)

    JUST WATCHED

    Trump arrives in AZ to tout border successes

MUST WATCH

Trump arrives in AZ to tout border successes

CNN's Boris Sanchez reports border apprehensions are down 46% compared to the same time in 2016.

Trump arrives in AZ to tout border successes

CNN's Boris Sanchez reports border apprehensions are down 46% compared to the same time in 2016.