Analyst Daniel Pinkston, a lecturer at Troy University, said he did not believe that Rodman was going as a back-channel emissary from Trump despite United States media speculation.
Mr Rodman is a friend of North Korean leader Kim Jong-un and has made several visits to the country in recent years.
According to the Washington Post, North Korean officials contacted American counterparts last week to tell them Warmbier was in a coma.
Warmbier is now on his way home to OH, with a State Department representative, to be reunited with his family.
"We strongly suggest that Americans do not go to North Korea", Nauert said.
A small group of family friends was nearby to celebrate Warmbier's arrival, cheering and holding signs that read "Pray for Otto" and "Welcome home Otto".
The father of an American college student released by North Korea and now hospitalized in a coma says his son was "brutalized" by his captors.
The U.S. relies on Sweden to represent its interests in North Korea, since the U.S. has no direct diplomatic relations with North Korea itself. In his memoir Not Forgotten, missionary Kenneth Bae, who was imprisoned for more than two years, wrote of daily interrogations "from 8 in the morning until 10 or 11 o'clock at night, every day for four weeks". Here's what we know about the three Americans who are believed to remain in North Korean custody. He had been in the imprisonment for 17 months in North Korea. Sadly, he is coma and we have told that he has been in that condition since March 2016.
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Yun was instructed to prepare to travel to Pyongyang with the intention of bringing Warmbier back to the United States.
The BBC's Stephen Evans in Seoul says it remains to be seen if Mr Warmbier's illness is the direct result of brutality in prison.
He was met by North Korean Vice Minister of Sports Son Kwang Ho.
Now, parallel to this track, basketball showman Rodman has arrived in Pyongyang, wearing a T-shirt emblazoned with the logo of a cryptocurrency set up for marijuana marketers. They were immediately taken to Warmbier. PotCoin stock soared almost 100 percent after news and photos of Rodman were published upon his arrival in North Korea.
Former New Mexico Gov. Bill Richardson, a former US ambassador to the United Nations, said there should be an investigation into what happened to Warmbier leading to this "tragic situation".
In March 2016, a North Korean kangaroo court, after a one hour show trial, concluded, according to the state-run North Korean Central News Agency, that Warmbier had committed a crime "pursuant to the US government's hostile policy toward [the North], in a bid to impair the unity of its people after entering it as a tourist".
Warmbier's family was told that their son came down with a case of botulism soon after he was found guilty, and was subsequently given a sleeping pill. The State Department would not comment on Warmbier's condition, citing privacy concerns.
North Korean representatives at the United Nations did not respond to repeated requests for comment. Otto Warmbier, a 22-year-old University of Virginia student, was arrested while on a visit to North Korea on December 31, 2015. "He doesn't deserve this", Fred Warmbier told The Enquirer in an interview last month.
That moment to use this chip might have arrived, in Pyongyang's estimation, with the escalation of tensions between the USA and North Korea over the latter's pursuit of nuclear weapons. On Tuesday, the White House announced that recently elected South Korean President Moon Jae-in would visit Washington at the end of the month.