Candidates for President

Associated Press

'Dark money' ties raise questions for GOP Sen. Joni Ernst of Iowa

Documents obtained by The Associated Press reveal an outside group founded by top political aides to Sen. Joni Ernst is working closely with the Iowa Republican to raise money and boost her reelection prospects.

Some legal experts say the degree of overlap between her campaign and the nonprofit Iowa Values could violate the law.

Emails show Ernst fundraiser Claire Holloway Avella asked a donor for $50,000 for the group following an introduction by the senator.