Dark money, or non-traceable campaign funds donated to nonprofit groups, has played a huge role in American politics in all levels of government for decades. Secret Spending in the States, a report from the Brennan Center for Justice, is the most comprehensive analysis of secret spending beyond the federal level to date. Chisun Lee, Senior Counsel with the Brennan Center for Justice at NYU School of Law, one of the report’s co-authors, joins us to discuss.