Reports said that the override came hours after Bush vetoed the measure. The president said that the bill is too expensive and overly generous with subsidies to farmers.
Much of the bill was enacted in May, but 34 pages that were mistakenly left out of the copy that went to the White House and did not become law. The missing section included foreign aid programs.
Congress passed the bill again to ensure the full law was enacted, maintaining food aid and to prevent future legal challenges. It was vetoed again, but Congress overrode the veto.
Source: American Meat Institute