"Dark money" refers to political spending by organizations that are not required to disclose their donors. This type of funding often comes from nonprofit organizations or super PACs that can receive unlimited contributions without revealing the sources of their funds. As a result, it can be challenging to trace where the money is coming from and how it influences political campaigns. The use of dark money has raised concerns about transparency and accountability in the political process. Critics argue that it allows wealthy individuals and corporations to exert disproportionate influence on elections and policy decisions, potentially undermining the democratic process.