The arrest of a California labor leader has become a rallying cry for immigrant advocates across the country who called for his release and an end to President Donald Trump’s immigration crackdown. David Huerta,

That's one reason so many leading Democrats jumped to his defense. David Huerta, the 58-year-old president of a statewide janitor's union and of the Service Employees International Union California, was arrested by federal agents Friday outside a Los Angeles garment warehouse where protesters gathered to watch and oppose an apparent workplace immigration raid.