The US attorney general has said that President Donald Trump's administration will use the "Hobbs Act" in California. It is reported that the "Hobbs Act" is a federal law in the United States, which is mainly used to crack down on crimes such as extortion and robbery that affect interstate commerce. If the government invokes the act, it usually means intervening in local affairs with federal powers, which may involve the use of law enforcement resources or military force to deal with so-called "...