North Dakota Sen. Heidi Heitkamp raised $12.4 million during the first two-and-a-half weeks of October, a new disclosure showed, a spike in fundraising that coincided with the Democrat’s high-profile decision to vote against Brett Kavanaugh’s nomination to the Supreme Court.

Heitkamp’s haul in that short period was more than three times what the senator had raised during the previous fundraising quarter, when she brought in $3.7 million over three months.

The disclosure filed Thursday with the Federal Election Commission indicated that after Heitkamp announced her decision to vote against confirming Kavanaugh, the number of donors to her campaign spiked. While Heitkamp received an average of 221 donations a day in early October, she received an average of more than 3,000 donations per day on and after Oct. 4, the day she said she would vote no.