The Ninth Circuit Court of Appeals has handed a gift to the Kamala Harris for U.S. Senate campaign, allowing Ms. Harris to collect confidential taxpayer information about donors to charities and nonprofit advocacy organizations, all without probable cause and a warrant. The leftwing Harris is currently California’s Attorney General, and is touted by some as “the next Barack Obama.” She also is the state’s top charity regulator. The court said she may collect names of top donors to all charities and nonprofit advocacy organizations for “law enforcement” reasons even without a hint of lawbreaking. This will undoubtedly intimidate nonprofit critics...