Why did Andrew Jackson call the election of 1824 a “ corrupt bargain”?

In the 1824 election, without an absolute majority in the Electoral College, the 12th Amendment dictated that the Presidential election be sent to the House of Representatives, whose Speaker and candidate in his own right, Henry Clay, gave his support to John Quincy Adams and was then selected to be his Secretary of State. In the 1876 election, accusations of corruption stemmed from officials involved in counting the necessary and hotly contested electoral votes of both sides, in which Rutherford B. Hayes was elected by a congressional commission

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the compromise of 1850 was a package of five separate bills passed by the united states congress in september 1850, which defused a four-year political confrontation between slave and free states on the status of territories acquired during the mexican–american war