Labor unions benefit more from Citizens United than big conservative donors

The loosening of federal rules for political spending has done more to help Democrats than Republicans, according to two recent analyses of campaign contributions.

Those facts run counter to a well-established national media narrative — one often repeated by liberal groups and Democratic lawmakers who bemoan the influence of corporate cash in politics after the Supreme Court’s ruling in 2010 opened the flood gates to unlimited political spending — that says Republicans and their big business allies have been able to unduly influence elections with unfettered spending.