Now that the midterm elections have been digested — and looked at up, down and sideways — some patterns that might dim President Trump’s re-election prospects have begun to emerge.

Catalist, a for-profit data firm founded in 2006 by the Democratic campaign strategists Harold Ickes and Laura Quinn, has become a go-to source of voter and donor information for liberal and progressive organizations.

During and after the 2018 elections, the firm conducted a study of the electorate to determine favorable and unfavorable developments important to its clients.

Catalist found that between 2014 and 2018 white voters aged 18 to 44 shifted sharply in favor of the Democrats. In 2014, whites 18 to 29 supported Democrat candidates by one percentage point; in 2018, these young white voters backed Democrats by 26 points, a substantial 25-point swing.

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https://www.nytimes.com/2018/11/29/opinion/trump-democrats-midterms-southwest.html?action=click&module=Opinion&pgtype=Homepage