The announcement by Mr. Paxton, the attorney general of Texas and a firebrand conservative, set up what is expected to be a blockbuster showdown in Texas.

President Trump’s next round of tariffs on major trading partners went into effect just after midnight, bringing levies on China to at least 104 percent.

© Eric Lee/The New York Times

President Trump’s next round of tariffs on major trading partners went into effect just after midnight, bringing levies on China to at least 104 percent.

Jamieson Greer, the United States trade representative, told senators the U.S. is economy is in need of “drastic, overdue change.”

Trump is taking the law into his own hands.

Senator Steve Daines said in an interview that in meetings with Chinese officials, he called for talks between President Trump and China’s leader, Xi Jinping.

A psychiatrist and a patient respond to an article in Science Times. Also: A plea to Congress; an upside-down definition of waste, fraud and abuse.