Advocacy groups pouring money into independent campaigns to impact this fall’s midterm races must disclose many of their political donors beginning this week after the Supreme Court on Tuesday declined to intervene in a long-running case.Source: Political nonprofits must now name many of their donors under federal court ruling after Supreme Court declines to intervene...

The ways that social media shape political attitudes and the intricacies of lawmaking in the U.S. Congress were two of the many topics at the American Political Science Association Annual Conference in Boston earlier this month.Source: APSA conference roundup: Research on political polarization on social media and the U.S. Congress...

The Texas senator’s re-election campaign sent voters in at least three counties a letter with a label suggesting it was a legal summons. The Federal Election Commission says doing so doesn’t break any rules.Source: Ted Cruz’s Campaign Marked a Fund-Raising Letter an Official ‘Summons.’ It Wasn’t Against the Rules....

Bradley Smith is chairman of the Institute for Free Speech, a former Republican chairman of the Federal Election Commission, and a visiting fellow in the James Madison Program at Princeton University.Source: Is attempting to sway Susan Collins’s vote breaking the law? It’s hard to tell....