As President Donald Trump opened his keynote address in Saudi Arabia, he lavished praise on the "magnificent" kingdom and "the grandeur of this remarkable place."

Then he made clear there would be no public lecture from America on Saudi Arabia's abysmal human rights record.

"We are not here to tell other people how to live, what to do, who to be, or how to worship," Trump declared Sunday.

Source: b"Saudi Arabia's King Salman bin Abdulaziz Al Saud (R) presents US.President Donald Trump / Reuters"

Trump's willingness to set aside human rights as a principal foreign policy has been one constant in his chaotic administration. Yet the absence of any public reference to the kingdom's treatment of women and political opponents during his two-day visit was still jarring, particularly when contrasted with his affectionate embrace of the royal family.

The closest Trump came to acknowledging the human rights situation was a call for the region's leaders to stand together against "the oppression of women." A White House official later said the president did raise women's rights in his private meetings with Saudi officials, and noted that administration officials broached the topic in their talks in the lead-up to the trip. The official insisted on anonymity in order to discuss the private meetings.

What about Trump's predecessors?

To be sure, Trump's predecessors have also forged close ties with Saudi Arabia, an important U.S. partner in the Middle East, and other nations with questionable human rights records. But in their own ways, former Presidents Barack Obama and George W. Bush each vouched for American values in their dealings with those nations, including the kingdom.

Source: b'U.S. President Donald Trump dances with a sword as he arrives to a welcome ceremony in Saudi / Reuters'

Why is human rights record in Saudi a concern?

Saudi Arabia adheres to an ultraconservative interpretation of Islamic Shariah law where unrelated men and women are segregated in most public places. Women are banned from driving, although rights advocates have campaigned to lift that ban. Guardianship laws also require a male relative's consent before a woman can obtain a passport, travel or marry. Often that relative is a father or husband, but in the absence of both can be the woman's own son.

Saudi Arabia also routinely carries out executions by beheading, including some in public.

Ivanka Trump was no different

Ivanka Trump, the president's daughter and senior adviser, was more direct during an entrepreneurship roundtable with Saudi women Sunday morning, telling the participants that in every country, "women and girls continue to face unique systematic, institutional, cultural barriers, which hinder us from fully engaging in and achieving true parody of opportunity within our communities."

"Each of you know this to be true," she said.

Kristine Beckerle, a Saudi Arabia researcher for Human Rights Watch, said the first daughter was missing the bigger picture.

Some lawmakers in both parties raised concerns with Trump's reluctance to publicly vouch for U.S. values in places where people are persecuted.

However...

Human rights didn't go completely unnoticed on Trump's trip. During a press briefing Saturday, Secretary of State Rex Tillerson hammered Iran's newly re-elected president for his government's oppressive policies.

However, when reporters shouted out questions regarding Saudi Arabia's human rights record — namely, one question about when the kingdom intends to allow women to drive — Tillerson ignored it.