As a political fight rages in Washington over President Trump’s demand for $5.7 billion in border wall funding, there have been spirited acts of resistance on the United States-Mexico border.

Protests have been held. Resolutions passed. And initiatives funded to help the very people the wall is aimed to keep out.

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Bulldozers arrived last week near the National Butterfly Center in the Rio Grande Valley of Texas, signaling the Trump administration’s intention to begin construction on a steel and concrete barrier that would swallow more than two-thirds of the 100-acre wildlife refuge and botanical garden. The nonprofit center, which abuts the Rio Grande, sits on the path of a six-mile stretch of wall that has already been funded.

Federal government officials had said construction was scheduled to begin this month, despite an ongoing lawsuit filed by the center more than a year ago, said the center’s director, Marianna Trevino Wright. The center planned to file a restraining order to prevent workers from beginning construction on the wall, which would rise to 36 feet in some areas.