January 31 is an important day for campaign finance reporting, including when a number of new super PACs will be reporting for the first time.

The issue I will be watching: how many of these groups will be reporting contributions from (affiliated) 501(c)(4) organizations, which don’t have to report their donors publicly.  The great fear that I and many others have is that individuals, corporations, and other entities will try to hide their identities by funneling money through (c)(4)s.