OpenSecrets.org
The Center for Responsive Politics (CRP) is a non-profit, nonpartisan research group based in Washington, D.C. that tracks the effects of money and lobbying on elections and public policy. It maintains a public online database of its information.[1]
Their database OpenSecrets.org[2] allows users to track federal campaign contributions and lobbying, by lobbying firms, individual lobbyists, industry, federal agency, and bills. Other resources include the personal financial disclosures of all members of the U.S. Congress, the president, and top members of the administration. Users can also search by ZIP codes to learn how their neighbors are allocating their political contributions.
Source: Wikipedia: http://en.wikipedia.org/wiki/Center_for_Responsive_Politics
An initiative called Progress 2028 that purports to be Kamala Harris’ liberal counter to the conservative Heritage Foundation’s Project 2025 is actually run by a dark money network supporting former President Donald Trump.
Building America’s Future, the dark money group at the helm of the network, has steered money to a constellation of groups and initiatives boosting Trump’s agenda and spreading messaging aimed at chipping away voters from Harris. The dark money group reportedly received over $100 million in funding from billionaire Elon Musk, along with other donors, the New York Times recently reported.