Final answer:
The Hartford Convention consisted of Anti-War Federalists who discussed grievances about the War of 1812 and even considered secession from the U.S., but were largely seen as unpatriotic, leading to the Federalist Party's decline.
Step-by-step explanation:
The goals of the Anti-War Federalists who met in Hartford, Connecticut, were not to support the war effort, seek peace with Great Britain, celebrate American independence, or plan an invasion of Canada. Instead, these delegates from Connecticut, Massachusetts, Rhode Island, New Hampshire, and Vermont attended the Hartford Convention with the intention of addressing their grievances regarding the War of 1812 and its impact on the New England economy and political autonomy.
The most radical among them even considered the prospect of New England seceding from the United States to negotiate a separate peace with Great Britain. However, the Hartford Convention was dominated by moderates who tempered the radical proposals, and ultimately, the considerations of secession were overshadowed by the news of Andrew Jackson's victory at New Orleans, which arrived in Washington just in time. The actions of the Federalists at the Hartford Convention, particularly during a time of war, significantly contributed to the public perception of the Federalists as unpatriotic, hastening the demise of the Federalist Party.