WASHINGTON (CNN) -- Locked in a tight race to keep her congressional seat, Rep. Heather Wilson, R-New Mexico, said Tuesday that voters were turned away from the polls because the county clerk did not provide enough ballots. She is requesting that the Committee on House Administration dispatch observers to the district to monitor the election.

The New Mexico Secretary of State's office said two precincts that should have received 1,500 and 1,700 ballots respectively, instead got just 150 and 170 ballots each, according to the Albuquerque Tribune. A spokesman for the secretary of state said this appears to be due to a clerk's error, the Tribune reports.

Rep. Wilson said this does not appear to be an isolated problem.

"We are beginning to receive similar reports from other precincts in Bernalillo County," she said in a press release sent to CNN. Wilson also said that the voters who were turned away were not offered provisional ballots as required by federal law.

"Based on information provided by the county clerk, we expect more problems throughout the day," Wilson said.

--CNN Correspondent Dana Bash and CNN.com Producer Jason White