All you have to do is click through to the lawsuit they link

STATE OF NEW YORK; COMMONWEALTH OF MASSACHUSETTS; STATE OF ARIZONA; STATE OF CALIFORNIA; STATE OF COLORADO; STATE OF CONNECTICUT; STATE OF DELAWARE; DISTRICT OF COLUMBIA; STATE OF ILLINOIS; STATE OF MAINE; STATE OF MARYLAND; THE PEOPLE OF THE STATE OF MICHIGAN; STATE OF MINNESOTA; STATE OF NEW JERSEY; STATE OF NEW MEXICO; STATE OF OREGON; STATE OF RHODE ISLAND; and STATE OF WASHINGTON

In short, most of the ones with a Democrat as Attorney General