The messages urge the Biden administration to press Israel for a cease-fire, according to U.S. officials. Two were said to have been sent in the first week of the war.
Israeli officials say it is impossible to defeat Hamas without killing innocents, a lesson they argue Americans and their allies should understand.
A top State Department official said the ouster of several Ukrainian officials this week after corruption charges “sends a very strong signal.”
The State Department has contacted Congress about major arms deals for Turkey and Greece, but a prominent senator is strongly opposed to the Ankara sale.
The U.S. imposed new sanctions on Russian officials and companies, and penalized foreign businesses aiding the Russian military. But officials are holding back on energy sanctions.
The Biden administration is wary of making the designation despite strong calls from Congress and pleas from Ukraine.
Vladimir V. Putin is making gains in his war on Ukraine while the United States and its allies struggle with soaring energy prices and inflation.
The U.S. Embassy, which closed just before Russia’s invasion, could reopen “over a couple of weeks,” Secretary of State Antony Blinken said.
President Biden is rethinking relationships with allies as well as rivals — including China, Iran and Venezuela — to counter President Vladimir V. Putin of Russia.
The boldest measures that President Biden is threatening to deter an invasion of Ukraine could roil the entire Russian economy — but also those of other nations.