Who made king Caucus a campaign issue in 1824?

King Caucus was made a campaign issue in 1824 primarily by supporters of Andrew Jackson. They criticized the practice of party leaders selecting candidates in a closed meeting, arguing that it undermined democracy and the will of the people. This criticism helped to galvanize public support for Jackson, portraying him as a champion of the common man against an elite political establishment. This campaign strategy contributed to the rise of more democratic practices in selecting presidential candidates in subsequent elections.