U.S. Sen. David Vitter raised more cash than any previous Senate candidate in Louisiana, but he still finished his campaign in debt.

The Times-Picayune reports that Vitter's latest federal campaign finance report shows a series of last-minute TV ads left the senator's campaign with more than $442,000 in debts to be repaid.

Vitter, a Republican in his second term, raised $12.4 million for his campaign and received 57 percent of the vote in November, defeating Democrat Charlie Melancon and 10 other candidates. Melancon raised $3.9 million.

Vitter spokesman Joel DiGrado says the campaign needed to spend money to combat attacks from Democrats and to reach out to voters. DiGrado says Vitter is raising money and expects to repay his campaign debts soon.