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Dig into data on outside spending by party committees, super PACs and "dark money" groups.

The oil and gas industry regularly outspends environmental interest groups on federal lobbying and campaign contributions. According to OpenSecrets’ analysis of federal lobbying data from 1998 to 2023 ...

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See which industries and organizations are supporting your elected representatives in the House and Senate.

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To increase their Washington clout, powerful corporations and trade associations often use affiliated PACs to boost the campaigns of candidates aligned with their financial goals. PACs representing ...