WASHINGTON—Most Americans want Congress to continue protections for young immigrants brought to the U.S. illegally as children, and they see these so-called Dreamers in a favorable light, a new Wall Street Journal/NBC News poll finds.

The survey found that fewer than one in four people favor an end to rules that protect this group from deportation, while just over half of people in the survey said that Congress should vote to continue protections for these immigrants.

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