Arizona senator and former GOP presidential candidate John McCain has died at the age of 81.
The long-serving politician announced on Friday that he would be discontinuing his treatment for brain cancer, with his office confirming on Saturday evening that he had died.
A war hero who was captured and tortured in Hanoi, Vietnam after his plane was shot down, he went on to serve 6 terms in the U.S. Senate representing Arizona.
He ran for president in 2008, accepting the GOP nomination at the Republican National Convention at the Xcel Energy Center in St. Paul.
He would returned to Minnesota for treatment on his cancer, undergoing surgery at the Mayo Clinic in Rochester this past April.
Tributes have already started rolling in for McCain, with Minnesota's Sen. Amy Klobuchar calling him a "mentor" and a "man of unbelievable conviction."
Her fellow Minnesota Sen. Tina Smith called him "the definition of courage and strength."