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The Trump administration on Tuesday sought to blame Democrats for what it calls a "border crisis," claiming that Democrats were standing in the way of much-needed laws.

An estimated 4,645 people died in Hurricane Maria and its aftermath in Puerto Rico, according to an academic report published Tuesday in a prestigious medical journal. That figure dwarfs Puerto Rico's official death toll of 64, which the article's authors called a "substantial underestimate" of Hurricane Maria's death toll.

CNN's Kate Bennett says first lady Melania Trump is back to work but has yet to make a public appearance since her kidney procedure, sparking questions.