U.S. President Donald Trump and First Lady Melania Trump react to children dressed up in costumes during a Halloween event at the White House in Washington, D.C., U.S., on Sunday, Oct. 25, 2020. Trump's chief of staff today defended the White House response to the coronavirus after infections of at least three staff or advisers to Vice President Mike Pence, but said the U.S. is "not going to control" the pandemic. Photographer: Yuri Gripas/Bloomberg
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