Who was adams' former opponent who did not endorse his economic plans?

The answer is Adrew Jackson. The United States presidential race of 1828 was the eleventh quadrennial presidential decision, hung on Friday, October 31, to Tuesday, December 2, 1828. It highlighted a rematch between occupant President John Quincy Adams, and Andrew Jackson, who won a majority of the discretionary school vote in the 1824 race.