Federal Election Commission guidelines forbid using campaign funds for personal expenses.
A Republican congressman running for Senate in Indiana billed his campaign more than $2,000 in airfare for his family's trip to the Ronald Reagan library in California, an apparent violation of federal election laws.
The expense is part of hundreds of thousands of dollars in travel expenses, meals and vehicle payments U.S. Rep. Marlin Stutzman has charged to his campaign fund since 2010.
