Spotlight on Congress

MapLight research on the influence of money and politics in U.S. Congress.

Los Angeles and Silicon Valley Among Top Zip Codes Contributing to Federal Candidates



July 29, 2015 -- Are California's pockets of wealth also where politicians can find their biggest campaign donors? A MapLight analysis of campaign contributions from the state of California to federal candidates reveals that, when ranking these zip codes by amount contributed per capita, the most politically generous areas are found all across the state.

From what California zip codes do most federal campaign cotnributions originate?


2016 Presidential Candidates Raise Millions from Key States


Andrea Izzotti/Shutterstock


July 17, 2015 -- The reports are in. On July 15, the 2016 presidential candidates turned in their Federal Election Commission (FEC) filings disclosing how much their campaign committees have raised to date.

From which states have presidential candidates received the most money for their campaigns, and how much have they raised in total?

Iowa's Fortune 1000 Companies Spent $1.2 Million on Lobbying in Q1, 2015




July 1, 2015 -- MapLight examined the political spending of Iowa’s five largest public companies, including the amount they spent lobbying Congress and federal agencies, and the amount their political action committees contributed to federal candidates. The analysis also highlights stock ownership in these companies by members of Congress.

How much have Iowa's five largest public companies spent on lobbying and campaign contributions to federal candidates?

Industries Supporting Trade Bill Give Nine Times More Money to Senators Than Opponents


U.S. Department of State/Wikimedia Commons


June 24, 2015 -- Later today, the Senate is expected to pass H.R. 2146, which would grant President Obama broad authority to negotiate and finalize trade agreements.

How much did industries supporting and opposing the trade bill contribute to current members of the Senate?

Supporters of the Medical Device Tax Repeal Contributed 21 Times More Money Than Opponents




June 17, 2015 -- Later this week, the House of Representatives is expected to vote on the Protect Medical Innovation Act, which would repeal a 2.3 percent tax on medical devices.

How much more money did medical device manufacturers and their allies contribute to members of the House of Representatives compared to opponents of the Protect Medical Innovation Act?