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WASHINGTON — More than a dozen Native American leaders and organizations sent a letter to NFL Commissioner Roger Goodell on Monday calling for the league to force Washington Redskins owner Dan Snyder to change the team name immediately.

The letter was signed by 15 Native American advocates and obtained by The Associated Press. It demands the team and the NFL cease the use of Native American names, imagery and logos — with specific importance put on Washington, which last week launched a “ thorough review “ of its name.

The letter was delivered on the same day that President Donald Trump voiced his opposition to any name change by the team. Several team sponsors have come out in favor of change recently and Snyder showed his first indication of willingness to do so amid a nationwide movement to erase racially insensitive symbols.