David Stockman, Reagan's first budget director, considered himself a leftist revolutionary when young, but then became a leading supply-side revolutionary a couple of years before Reagan was elected. In his book "Triumph of Politics," recounting the failure of the "Reagan revolution," he frequently refers to the supply-siders agenda as revolutionary -- for example, "The GOP rank and file's reservations about the Kemp-Roth tax cut really bothered me. That was the political gravy -- the easiest part of the revolution" (p.55).
During Reagan's campaign he tells us "Reagan had been converted to supply-side -- so for better or worse, Reagan now was the the voice of the revolution" (p. 50).
In the prologue however he tells us "In the final analysis, there has been no Reagan Revolution" (p. 15). In fact he realized this by the end of Reagan's first year in office. The problem was, that Stockman wanted the budget cut, and that did not happen. Instead only taxes were cut and this produced the huge deficits.
Stockman explains how this happened. "Jack Kemp liked the sound of their [the supply side gurus, Laffer and Wanniski] music on this issue. They were leading him, too, into a shriller and shriller anti-balanced-budget, the-tax-will-pay-for-itself, and deficits-don't-matter-that-much position" [emphasis added]
And here are some quotes by the press of the day:
"A few of the recently appointed sub-Cabinet officers will be on the cutting edge of the change Reagan has promised for the Federal Government. Their fervent beliefs are a radical departure from the policies of past Administrations, Democratic or Republican. Says one moderate White House aide: "The revolution is happening and nobody is noticing." --Time Magazine, Mar. 16, 1981.
President Reagan would not be proposing business as usual. The President had in mind what Stockman saw as "fiscal revolution." --The Atlantic, December 1981.
“Reagan Wins his Budget; the Revolution Begins” --Time Magazine headline, July 6, 1981