WASHINGTON (CBS) – A new poll looking ahead to the 2020 election finds President Donald Trump trailing a generic Democratic candidate, but not Sen. Elizabeth Warren of Massachusetts.

The Politico/Morning Consult survey shows Trump beating Warren 42 percent to 36 percent, with 22 percent undecided. Trump loses to “Democratic candidate” 43 percent to 35 percent.

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The poll was conducted after Warren made headlines by receiving a rare rebuke from the Senate for quoting a letter from Coretta Scott King during debate over Sen. Jeff Sessions’ nomination for attorney general.

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Warren and Trump were frequent sparring partners during the campaign. He has referred to the senator as “Pochahontas,” referencing her claims of Native American heritage, while she has called him a “thin-skinned racist bully.”

The Massachusetts Democrat has her own re-election bid to worry about in the meantime. A WBZ-UMass poll last fall showed warning signs for Warren, leading possible challengers by just a few points.

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The Politico/Morning Consult shows Warren with a 37 percent favorability rating, with 30 percent viewing her unfavorably.