Andres Manuel López Obrador, Mexico's left-populist presidential front-runner, has filed a complaint with the Inter-American Human Rights Commission against Trump's proposed wall.
Homeland Security Secretary John Kelly issued two memoranda directing the department to implement Trump's harsh executive orders on immigration enforcement.
Amid deteriorating relations between the US and Mexico, reports emerge that President Trump threatened military intervention in a phone call with his counterpart Peña Nieto.
Trump's threat to make Mexico pay for the wall with a 20% tariff on all goods coming in from across the border portends—at least—a trade war with the third biggest US trading partner.
President Trump signed two executive orders on immigration—withholding funds from "sanctuary cities" and directing construction of a wall along the Mexican border.
Gen. John Kelly, Trump's choice for Homeland Security secretary, is ex-chief of the Pentagon's Southern Command who clashed with Obama over his hardline views.
Joe Arpaio and Rudolph Giuliani, short-listed for Homeland Security secretary, both have extensive experience in running detainment camps for undocumented immigrants.
A federal judge ordered Arizona's Sheriff Joe Arpaio to be tried for criminal contempt over continuing his immigration patrols in defiance of court orders in a civil rights suit.
As Immigration and Customs Enforcement launched a new wave of deportations of Central American migrants, protests against the raids were carried out across the country.
Border Patrol agents rush through interviews with Central Americans seeking to flee gangs and then send them home to the "threat of murder, rape and other violence."
John McCain prompted testimony from a Homeland Security official that ISIS could seek to infiltrate the US through Mexico. The media jumped on it, but there's nothing there.
A protected witness testified to Mexican prosecutors that members of the US Border Patrol collaborated with the Sinaloa Cartel in arms trafficking to the criminal network.
