Andrew Miller cited family reasons, but the resignation is the latest in a series of departures from the Biden administration since Israel's war on Gaza began.
A senior US State Department official and expert on Palestinian-Israeli affairs resigned this week, US media reported, amid the eight-month war in Gaza that has killed more than 37,400 Palestinians.
Andrew Miller, deputy assistant secretary for Israeli-Palestinian affairs, cited personal reasons for his decision to leave his job, The Washington Post reported Friday.
Miller told colleagues he wanted to spend more time with his family as the current conflict that began in October had become “all-consuming,” according to the report.
He was skeptical of US President Joe Biden's “bear hug” approach to Israel's government, said the Post, which first reported Miller's departure.
Miller's is the latest in a series of resignations from the Biden administration at various government agencies over Washington's continued support for Israel.
The Post added, however, that Miller told colleagues that if not for his personal responsibilities, he would have preferred to remain in his job, even in areas where he disagreed with administration policy.
Reporting from Washington, DC, Al Jazeera's Kimberly Halkett said this underscored growing frustration within the Biden administration over the president's unconditional support for Israel's war in Gaza.
“There have already been a number of high-profile resignations, where those who have resigned have said that the president in some cases is distorting the facts or even turning a blind eye, or is complicit in the 37,000 Palestinian deaths and counting in Gaza. Halkett said.
Miller played a key role in the executive order issued in February that resulted in sanctions imposed against several Israeli settlers for attacking Palestinian communities in the occupied West Bank, broadcaster CNN reported.
He was previously a senior political advisor to the U.S. ambassador to the United Nations and served as director for military affairs for Egypt and Israel on the White House National Security Council during the Obama administration.
In May, Maj. Harrison Mann, a former U.S. Army officer, said he had resigned several months ago because of his country's “unconditional support” for Israel's war in Gaza. He resigned from the Defense Intelligence Agency (DIA) in November.
American airman Aaron Bushnell died after setting himself on fire in a protest outside the Israeli embassy in Washington, DC, in February.
Thousands of people protested outside the White House against the war, and such events are likely to continue in the run-up to November's presidential election.
“We also expect there to be more protests when Israeli Prime Minister Benjamin Netanyahu addresses a joint session of Congress next month. We already know that there will be a large number of members of Congress who plan to boycott that speech,” Halkett said.
