President Joe Biden has travelled to Texas in his first trip to a disaster zone, visiting workers still reeling from a deadly winter storm.
“You’re doing God’s work,” Mr Biden told emergency workers in Houston.
His visit comes as Texas recovers from a massive energy grid failure that left millions without electricity amid an unusually severe cold snap.
Dozens of deaths have been blamed on the cold, but it could take months to determine the full tally, US media say.
The energy disaster, which affected some four million residents, came as Texas was seeing the lowest recorded temperatures in more than three decades earlier this month.
Miles of pipes in the south-western state froze and subsequently burst as homes and businesses that are not often insulated against cold weather lost heat.
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