Service Employees International Union California President David Huerta was injured and detained while documenting an immigration enforcement raid in downtown Los Angeles Friday, labor union officials said — prompting protests and calls for his release.

The arrest of labor leader David Huerta in Los Angeles has put unions on the leading edge of resistance to mounting authoritarianism.

Democrats have decried the charges as political retaliation and predicted that Rep. LaMonica McIver will be cleared in court.