A decision to leave the 47-nation body, as most observers anticipate, would be more definitive than the lesser option of staying on as a nonvoting observer.
Haley said that if the council does reform, the United States "would be happy to rejoin". "If it fails to change, then we must pursue the advancement of human rights outside of the Council".
The UK has joined the U.S. in condemning an alleged anti-Israel bias at the United Nations, pledging to vote against issues on Palestine brought by the Human Rights Council.
Several non-government organizations have sent a letter to Secretary of State Mike Pompeo decrying the expected decision.
"The administration has abandoned America's leadership on the global stage on human rights", Miles said in a phone interview. National Security Adviser John Bolton opposed the group's creation when he was US ambassador to the United Nations in 2006, under former President George W. Bush.
"The thought that any State would seek to deter parents by inflicting such abuse on children is unconscionable", he said Monday, in comments opening the 38th session of the Human Rights Council. The United States and Australia cast the only "no" votes. During the first six years the United States was a member, resolutions critical of Israel dropped to one-fifth.
Diplomats have told reporters that a U.S. withdrawal from the 47-member council could come as early as Tuesday.
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Each were assigned to a translator and authorities worked to determine their identities before they were sent to welcome centers. High waves and winds had forced the convoy to take a detour on its 1,500-kilometre (930-mile) voyage to Spain.
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Brown also said that there are no signs of the two nations resuming their stalled trade talks "in just about every level". "We don't want a trade war , but we're not afraid of a trade war, " ministry spokesman Geng Shuang said .
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A second border patrol agent was able to pull over the second vehicle but the third refused to stop. Boyd said the driver of the Suburban was also injured and was flown to a San Antonio hospital.
She went on to claim the: "disproportionate focus and unending hostility toward Israel is clear proof that the council is motivated by political bias, not by human rights". It was not immediately clear if the USA would remain a non-voting observer on the council. In that situation, the USA would be able to speak out on rights abuses, but not to vote.
The Trump administration's irritation with the council makeup and its agenda has been telegraphed with drumbeat regularity by Haley.
"We take this step because our commitment does not allow us to remain a part of a hypocritical and self-serving organization that makes a mockery of human rights".
Two weeks ago, Haley reiterated her ultimatum.
Among reforms the United States had been seeking was to make it easier to kick out member state with egregious rights records.
"There is no legitimate human rights reason for this agenda item to exist", Haley said previous year.
Alongside his strong speech on the importance of girls' education, his commitment that the United Kingdom will vote against all resolutions in 2019 tabled under the infamous Item 7, which singles out Israel as the only country in the world to have its own agenda item, is an important victory for human rights.
Each council session includes an agenda item on so-called country specific situations, known as Agenda Item 4, where debates on the crises in Syria, Burundi and others typically take place.