Complex sentence: She participated in the 1980 creation of the Congressional Union, an organization highly focused on civil disobedience for women's rights and with which she was arrested for a White House display, burning President Reagan in effigy for his failure to promote feminist ideals.
Split into simpler sentences: She participated in the 1980 creation of the Congressional Union, an organization highly focused on civil disobedience for women's rights. While protesting with this organization, she was arrested for burning President Ronald Reagan in effigy at the White House for his failure to promote feminist ideals.