2. The Trump administration accused Moscow of engineering a series of escalating cyberattacks that could have enabled it to shut off American and European nuclear power plants and water and electric systems. Above, a power plant in Brooklyn.

And the White House issued new sanctions, its toughest action so far against Russia, for election interference and other “malicious” cyberattacks.

The U.S. also joined European countries in denouncing Russia over an attack on a former spy, which used a terrifyingly powerful, military-grade nerve agent on British soil.

Separately, the special counsel, Robert Mueller, subpoenaed business records from the Trump Organization — including some related to Russia.