Despite the successful 316-108 vote to override the President's veto, it now appears that due to an unexplainable "clerical error", the Bill apparently will have to return to the starting line for a re-vote.

House Agriculture Committee leaders, Chairman Collin Peterson and Rep. Bob Goodlatte, acknowledged the print out of the Farm Bill sent to President Bush inadvertently failed to include "Title III", the trade title which includes such important elements as the authorization for food aid, the McGovern-Dole international school lunch program, and the Market Access Program.

The error went unnoticed by House Speaker Nancy Pelosi, who certified the Bill as a true copy, and by the White House.

It apparently was discovered shortly before the House began its debate Wednesday to override the President's veto.

The error sent the bill into uncharted water. House Minority Leader John Boehner said the constitutionality of a vote on a Bill that was not whole was unclear, and he unsuccessfully urged a delay in Wednesday's override vote.

Late Wednesday evening, Democratic leaders decided the Bill could not be salvaged by re-instating the missing trade title.

But they acknowledged that the Bill as vetoed and overridden was not the exact Bill that had earlier passed the House and Senate, and therein was a problem.

It now appears the House will have to reassemble the original Farm Bill with the trade title included and hold a new vote in both the House and the Senate before again sending it to the White House.

It is expected the President will then repeat his veto – and override votes will have to be taken once again.

Republican Roy Blunt, who unlike Boehner has supported the Farm Bill, told reporters the requirement for a re-vote "is not an anti-farm bill position".

"If we're going to pass law, we must pass law that will stand any legal challenge," he said.