Wall Street Journal: “As a third-generation naval officer and his detention in Vietnam, Mr. McCain had the moral authority and stature to question the executive branch, the Pentagon and its top military officers in a way few others are able or willing to do.”
“Now, it is unclear who if anyone, might fill such a role as the U.S. faces national-security challenges including North Korea’s nuclear program, China’s regional and global ambitions, Russia’s cyber incursions and conflicts from the Middle East to South Asia. Adm. Mike Mullen, the retired former chairman of the Joint Chiefs of Staff, said Mr. McCain’s strong advocacy for internationalism—and his willingness to speak up when he saw those values under attack—made his voice critical.”

