Former President who fough thard for the right to discuss slavery in Congress?

Former President John Quincy Adams is known for his passionate advocacy for the right to discuss slavery in Congress. After his presidency, he served in the House of Representatives, where he fought against the gag rule that aimed to suppress anti-slavery petitions. Adams believed that open debate on slavery was essential for a democratic society and tirelessly worked to bring attention to the issue throughout his later political career. His efforts were pivotal in keeping the conversation about slavery alive in a time of increasing tension over the issue.