Roberta Jacobson will resign from her post as US ambassador to Mexico after just over two years on the job, she announced Thursday.
Roberta Jacobson wrote a note to the staff of the embassy in which she says: "After more than 31 years in the service of the government of the United States, I have reached a hard decision, it is the right time to take on new challenges and adventures".
Analysts say that Jacobson's decision to leave will be deeply felt by officials in both Mexico and the United States. Feeley said he could no longer advocate for US policy in the Trump administration.
"Threatening to tear up NAFTA unilaterally and continuing to push an outrageously expensive and ineffective border wall are not productive". She later added, "Together we are stronger!" "I encourage the administration to work with the Senate in a bipartisan way to find a nominee who understands and values our critical relationship with Mexico, and who will serve the national interest".
Last weekend, Mexican President Enrique Peña Nieto called off an official trip to Washington to meet with President Donald Trump after a tense phone call.
In addition, negotiators are now in Mexico City, locked in the seventh round of contentious talks to renegotiate the North American Free Trade Agreement.
The Washington Post, which first reported the delay, said the two leaders spoke for about 50 minutes, but the discussion led to an impasse when Trump refused to publicly affirm Mexico's position that it would not fund construction of the wall along the U.S. -Mexico border.
She had been appointed ambassador during the Obama administration, and had previously served as assistant secretary of state for Western Hemisphere affairs.More news: Eight Turkish soldiers killed, 13 wounded in Afrin operation in Syria: Army
Jacobson pictured during last year's quake in Mexico City.
Officials in Mexico, as well as former colleagues, lamented her departure, calling is the latest blow to strained Mexican-American relations.
Her last day will be May 5, according to The New York Times. In that role, she was a key broker in the agreement to re-establish USA diplomatic relations with Cuba.
Mrs. Jacobson will be leaving a State Department that has seen an exodus of foreign service officers.
In early February, Tom Shannon, the State Department's top career diplomat and another official with extensive experience in the Americas, announced that he would retire as soon as a successor for his post was chosen and ready to fill the job.
Joseph Yun, special representative on North Korea, resigned earlier this week, and John Feeley, the USA ambassador to Panama, announced his decision to leave in January.
The departures of Shannon, Jacobson and William Brownfield, the former US assistant secretary for International Narcotics and Law Enforcement Affairs, deprive the USA diplomatic service of many of its most experienced Latin American experts, during a crucial election year in the region.