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Two men have been shot dead by ICE agents in separate incidents in Maine and in Texas – raising questions about the tactics used by immigration officers and bringing back a big political problem for President Donald Trump.

BBC's North America Editor Sarah Smith explains the backlash the president is facing on one of the biggest issues he ran his election campaign on.

Video produced by Cai Pigliucci, filmed by Ian Druce, edited by Meiying Wu

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