Buchanan reported $301,331 in the bank and $92,200 in contributions between May 23 and June 30, the last reporting period.
Wilson, in contrast, showed a bank balance of $163,376 and raised $25,529 in the last period. He personally loaned his campaign $17,900.
The incumbent has not dipped into her own wallet, despite her willingness to do so in the past. Buchanan spent $800,000 of her own money on her failed 10th Congressional District special election primary in 2009.
Wilson is challenging Buchanan in the Nov. 2 general election.