Nonprofits Vow a New Resistance. Will Donors Pay Up?

In Donald J. Trump’s first term as president, some of his toughest opponents were not elected Democrats but left-leaning nonprofit groups. They bogged down his immigration and environmental policies with lawsuits and protests and were rewarded with a huge “Trump bump” in donations.

Now, some of those groups are promising to do it all over again.

“Trump’s gotta get past all of us,” Anthony D. Romero, the executive director of the American Civil Liberties Union, wrote on the nonprofit’s website the day after the election.

“Trump’s bigotry, misogyny, anti-climate and anti-wildlife zealotry — all will be defeated,” Kieran Suckling, the executive director of an environmental nonprofit called the Center for Biological Diversity, wrote in an email to potential donors.

That bravado masks uncertainty. This time could be a lot harder. Mr. Trump’s administration could learn from past mistakes and avoid the procedural errors that made its rules easier to challenge. And the higher courts are seeded with judges appointed by Mr. Trump.

Another problem: Nonprofits are finding that some supporters are not energized by another round of “resistance.” Instead they have been left exhausted, wondering whether their donations made any difference. Some are afraid that they could be targeted for retaliation by Mr. Trump and his allies for donating to groups that oppose his administration.

“The response from donors has been shock, anger and depression, sprinkled in with a few checks,” said Vincent Warren, the executive director of the Center for Constitutional Rights, which challenged several of Mr. Trump’s previous immigration policies in court. “It’s not been a flood.”