With what type of regeneration is Fuller concerned?

Margaret Fuller was primarily concerned with spiritual regeneration. She believed that at the Revolution Americans had entered into a solemn covenant with God. The principles of that covenant were enshrined in the Declaration of Independence, most notably in the second paragraph, which famously holds that "all men are created equal."
Despite such noble beginnings, Fuller argues, Americans have, in the ensuing decades, effectively violated their great covenant with God. The truth that all men are created equal is a law "as irrevocable as that of the Medes in their ancient dominion." And yet, that law has been systematically broken, not just by slavery, but by the exclusion of women from the realm of public life. In addition to its obviously legalistic connotations, "The Great Lawsuit" has the flavor of the pulpit about it. For Fuller, the struggle for female equality isn't to be construed in narrowly legal or political terms; it's a moral crusade that involves repairing Americans' broken covenant with God. The spiritual regeneration of each individual soul will ultimately lead to the regeneration of society.