Benjamin Netanyahu's "determination to stay in power no matter the cost is a clear and present danger to Israel," Martin Indyk wrote on social media.
Navalny, who is serving a 19-year term on charges of extremism, has been behind bars since January 2021.
Israel has pledged to keep fighting until it removes Hamas from power, dismantles its military capabilities and returns all of the hostages taken by militants.
Right-wing economist Javier Milei has immediately moved to prepare the public for a painful shock adjustment with drastic public spending cuts.
New electoral rules introduced under a Beijing order state that only “patriots” can administer the city.
Activists protested at the COP28 summit in Dubai, calling for a Gaza cease-fire and the release of detainees in Egypt and the United Arab Emirates.
Heavy fighting is raging across Gaza, including in the devastated north.
Bypassing Congress with emergency determinations for arms sales is an unusual step that has in the past met resistance from lawmakers.
Israeli officials said they were searching for Hamas militants, but some men simply have not been able to leave or are afraid to travel.
Israel Presses On With Its Gaza Offensive After U.S. Veto Derails Security Council Efforts To Halt War
Israel’s military pushed ahead with its punishing air and ground offensive in Gaza, bolstered by an emergency sale of tank ammunition approved by Washington.