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The Democratic Congressional Campaign Committee claims it had its best online fundraising day of the year Wednesday, when House Speaker John Boehner announced he would introduce legislation authorizing a lawsuit against President Obama's executive actions.

The DCCC tells NBC News that on Wednesday it raised about $584,000 from more than 27,000 online donations, including nearly 8,000 first-time donors. And it adds that another 5,000 have given the organization money today, bringing the total to 32,000-plus donations.