White House asks Congress for $5.7 billion for 'steel barrier'
By Marianne LeVine & Quint Forgey
House Armed Services Committee chair says President Donald Trump can declare national emergency
By Nataly Pak
How the Border Wall Is Boxing Trump In (Published 2019)
By Julie Hirschfeld Davis & Peter Baker
Opinion | No, Trump Cannot Declare an 'Emergency' to Build His Wall (Published 2019)
By Bruce Ackerman
Trump's wall: How much has been built during his term?
By Christopher Giles