“Rules of the Game: Dissecting Super PAC Consulting” by Eliza Newlin Carney in Roll Call.

“One Donor Gave One-Third of Pro-Republican Group’s Funds” by Heidi Przybyla and Jonathan D. Salant in Bloomberg.

“What happens to funds in defunct super PACs?” by Jeremy Roebuck in the Boston Herald.

“Secretive ‘Grassroots’ political group — vehicle for the very rich” by Joel Connelly in the Seattle Post-Intelligencer.

“Big donors diversify Super PAC donations” by Alexander Cohen and Alina Selyukh in Reuters.

“Billionaires fall in line” by Kenneth P. Vogel in Politico.