How a clutch of class-action lawsuits against Trump government challenges its anti-immigrant policies
US Border Patrol officer Tekae Michael stands near prototypes of US President Donald Trump's proposed border wall on November 1, 2017 in San Diego, California.
The concrete and steel structures, erected in a remote area in San Diego, will be tested for 30 to 60 days to determine which design meets the needs to secure the border, US Customs and Border Patrol Protection said in a statement. Authorities said that in considering the mockups -- built by six companies from across the United States -- they will evaluate a number of characteristics including anti-breaching, anti-climbing and anti-digging capabilities. / AFP PHOTO / FREDERIC J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)