At issue is a nearly-50-year-old law, the International Emergency Economic Powers Act, that Trump is citing to impose tariffs.

The tariffs are expected to drive up the costs of goods in the United States, and have already sent the stock market into a nose dive. That means that a lot of aggrieved potential plaintiffs have standing to challenge the tariffs in court.

On Jan. 20, Trump signed an executive order saying that children of undocumented parents would not be eligible for citizenship. Less than 24 hours later, Chiu, Bonta and attorneys general in 17 more states filed a lawsuit calling it “flagrantly unlawful.”

President Donald Trump, when asked about a Salvadoran man deported from the United States in error, on Friday told reporters that he would follow what the Supreme Court said, a day after the top court told the government to facilitate the man's return.