AdvertisementIf Trump Declares An Emergency To Build The Wall, Congress Can Block Him04:05Download AudioResumeFebruary 11, 2019Tamara KeithfacebookEmailA section of border wall is constructed on the U.S. side of the border on Jan. 28 in Tijuana, Mexico. Congress and President Trump continue to spar over how much additional border security funding will be allotted. (Getty Images)