New report asserts campaign law changes have further eroded political clout of the middle class and poor.

New York City's public advocate and the Coalition for Accountability in Political Spending want more regulation of political nonprofits.

Interest groups pour big money into Massachusetts special election despite candidates' efforts.

FEC laywer-turned-Minnesota county commissioner advocates for 'prompt, full disclosure' of political spenders.

'Consider the Source' e-book tells story of how cash dominated Election 2012.