Why were Adams and Clay accused of making a “corrupt bargain”?

Denounced immediately as a "corrupt bargain" by supporters of Jackson, the antagonistic presidential race of 1828 began practically before Adams even took office. To Jacksonians the Adams-Clay alliance symbolized a corrupt system where elite insiders pursued their own interests without heeding the will of the people.  

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Denounced immediately as a "corrupt bargain" by supporters of Jackson, the antagonistic presidential race of 1828 began practically before Adams even took office. To Jacksonians the Adams-Clay alliance symbolized a corrupt system where elite insiders pursued their own interests without heeding the will of the people.

Explanation:

it proved indian land claims were unjustified.

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