President Trump used a racially insensitive nickname for Sen. Elizabeth Warren (D-Mass.) on Monday during an Oval Office event honoring Native American code talkers. "You were here long before any of us were here," Trump said. "Although we have a representative in Congress who they say was here a long time ago," Trump added, speaking beneath a portrait of Andrew Jackson, who signed the 1830 Indian Removal Act. "They call her Pocahontas." The insult has been a favorite of Trump's, stemming from Warren's claim she has Native American ancestry. Warren told MSNBC it's "deeply unfortunate that the president of the United States cannot even make it through a ceremony honoring these heroes without having to throw out a racial slur."

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