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Asylum seeker from El Salvador Silvia Martinez embraces her daughter Maria, as they wait for their CBP One appointments with US Authorities before crossing through El Chaparral port in Tijuana, Baja California state, Mexico, on January 20. Minutes after his inauguration, US President Donald Trump said that he will issue a raft of executive orders aimed at reshaping citizenship and immigration issues stating that he will declare "a national emergency at our southern border" and that "all illegal entry will immediately be halted". (Photo by GUILLERMO ARIAS/AFP via Getty Images)