To understand the alleged scheme requires familiarity with controlling campaign-finance law and campaign contribution limits. As I explained at the time CDP sued the FEC last April:
Under federal law, ‘an individual donor can contribute $2,700 to any candidate, $10,000 to any state party committee, and (during the 2016 cycle) $33,400 to a national party’s main account. These groups can all get together and take a single check from a donor for the sum of those contribution limits—it’s legal because the donor cannot exceed the base limit for any one recipient. And state parties can make unlimited transfer to their national party.’
This legal loophole allows ‘bundlers’ to raise large sums of money from wealthy donors—more than $400,000 at a time—filtering the funds to the national committees. Democrats and Republicans alike exploit this tactic. But once the money reaches the national committees, other limits apply
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