Barack Obama’s 2008 presidential campaign was caught hiding the sources of 1,300 large campaign donations, aggregating to nearly $2 million. The campaign also accepted more than $1.3 million in unlawful donations from contributors who had already given the legal maximum.

Under federal law, such campaign-finance violations, if they aggregate to just $25,000 in a calendar year, may be treated as felonies punishable by up to five years’ imprisonment — with offenses involving smaller dollar amounts punishable by incarceration for a year or more. (See Section 30109(d) of Title 52, U.S. Code, pp. 51–52 of the Federal Election Commission’s compilation of campaign laws.)