As a senator, Marco Rubio even hinted at the need for regime change in China. Now he talks about cooperation.

Abu Bilal al-Minuki, said to be the Islamic State’s second-ranking leader, was killed after a helicopter-borne assault by commandos from both countries on Friday night, two U.S. officials said.

The president said a potential arms deal for Taiwan was a “very good negotiating chip” in talks with Beijing. His words raise questions about the reliability of U.S. support.

Top aides have drafted battle plans as peace negotiations have stalled.

The president has shifted the foundations of American policy toward China, throwing aside the adversarial approach of recent years.

In a new tactic, the Justice Department this week instructed federal prosecutors to build criminal drug cases against Mexican officials using terrorism statutes.

The engagement between the president and the Chinese leader may have tested a decades-old U.S. assurance to Taiwan not to consult Beijing on the topic.

The standoff comes as Chinese firms increasingly turn to domestic chipmakers like Huawei, in a drive to reduce China’s dependence on Western technologies.