The debate whether to regulate artificial intelligence is dividing leaders in both Silicon Valley and Washington. Senator Bernie Sanders and Stephen K. Bannon set aside partisanship to demand tighter regulations.

At an event in Washington, partisanship took a back seat as elected officials, religious leaders, parents and artists called for reining in artificial intelligence.

What began as a philosophical question — how dangerous might artificial intelligence become? — has hardened into increasingly entrenched rival camps.

Mr. Trump called Jensen Huang, Nvidia’s chief executive, while Mr. Huang was onstage in Los Angeles and criticized calls to slow down and regulate A.I.

The landmark legislation, known as the Clarity Act, stalled in the Senate as Democrats raised concerns about President Trump’s personal investments in crypto.

Alex Bores, who lost a congressional primary contest that revolved around A.I. regulation, is trying to position himself at the center of the conversation for the next presidential election.

Today’s chatbots aren’t likely to help lone actors invent a deadly pathogen, experts say. But newer models, trained in biology, may need stronger safeguards.

The 64-year-old Michigan power plant was set to retire. Then the Trump administration intervened in a way that overstepped its authority, a court ruled.

© Julián Trejo Bax/Associated Press