Goldwater narrowly won re-election in 1980 for what would be his final and most influential term in the senate. In 1986, Goldwater oversaw passage of the Goldwater–Nichols Act, arguably his most significant legislative achievement, which strengthened civilian authority in the Department of Defense. The following year, he retired from the Senate and was succeeded by Congressman John McCain, who praised his predecessor as the man who "transformed the Republican Party from an Eastern elitist organization to the breeding ground for the election of Ronald Reagan". Goldwater strongly supported the 1980 presidential campaign of Reagan, who had become the standard-bearer of the conservative movement after his "A Time for Choosing" speech. Reagan reflected many of the principles of Goldwater's earlier run in his campaign. "The Washington Post" columnist George Will took note of this, writing: "We [...] who voted for him in 1964 believe he won, it just took 16 years to count the votes".