Explain how the election of 1824 signaled the end of the era of good feelings?

The election of 1824 marked the end of the Era of Good Feelings by highlighting deep divisions within the Democratic-Republican Party, which had dominated American politics after the War of 1812. The contest featured multiple candidates from the same party, resulting in a contentious election without a clear majority winner and ultimately leading to the controversial House of Representatives decision. John Quincy Adams's victory, facilitated by a "corrupt bargain" with Henry Clay, further polarized the electorate and sparked rival factions, paving the way for the emergence of a bipartisan political landscape. This fracturing signaled the decline of unity and the rise of partisanship in American politics.