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President Barack Obama has called for broad reform of the US immigration system, while highlighting steps he has taken to strengthen border security.
In Texas, Mr Obama backed a path to legal status for illegal immigrants, as well as crackdowns on employers who hire illegal workers.
He called on the fractured Congress to reject "the usual Washington games" and enact a comprehensive overhaul.
An estimated 11m illegal immigrants, most of them Hispanic, live in the US.