He sued, claiming the law violated his free-speech right to contribute to candidates and causes within the base limits established by federal law.
The division among the justices on the case is sharp and clear. The court’s four-member liberal wing supports the aggregate limits as a necessary part of an overall system of campaign finance regulations.
In contrast, the court’s conservatives are concerned about the cost to free speech rights of the government limiting how much money contributors can give – even when they comply with base contribution limits that avoid an appearance of corruption.
US Solicitor General Donald Verrilli told the justices that if the aggregate limits were removed, candidates and party officials would be able to circumvent the remaining base limits and theoretically funnel up to $3.6 million from an individual into campaign funds.
“The very fact of delivering that check [for $3.6 million] creates the inherent opportunity for quid pro quo corruption,” Mr. Verrilli said.
Chief Justice John Roberts brushed aside the threat of possible circumvention, and sought to turn the argument instead to the free speech cost to contributors of having to comply with both base and aggregate limits.
“The aggregate limit would have the effect of restricting the ability of a contributor to make the maximum contribution to more than a certain number of candidates,” Verrilli conceded. “We can’t help but acknowledge that. It’s math.”