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I do solemnly swear that I will support and defend the Constitution of the United States against all enemies, foreign and domestic …

That is the start of the oath that members of Congress take upon assuming office. It’s also the oath that members of the military take when enlisting.

And I’m glad to see that military veterans are starting to call on Congress members to make good on their shared oath.

In an advertising campaign that began last week and is running in 14 House districts, veterans read the oath on camera and ask congressional Republicans to hold President Trump accountable for violating his own (very similar) oath. The campaign is part of the Defend American Democracy project, run by a coalition of groups alarmed by Trump’s behavior, including Republicans for the Rule of Law.

[Listen to “The Argument” podcast every Thursday morning, with Ross Douthat, Michelle Goldberg and David Leonhardt.]