Washington, D.C. ? More than two years after losing his bid for the White House, Democratic Sen. John Kerry exacted a measure of revenge against his political foes Wednesday by helping derail the diplomatic nomination of a Republican fundraiser.

President Bush withdrew the nomination of St. Louis businessman Sam Fox to be ambassador to Belgium after Democrats denounced Fox for his 2004 donation to the Swift Boat Veterans for Truth.

The group’s TV ads, which claimed that Kerry, D-Mass., exaggerated his military record in Vietnam, were viewed as a major factor in Kerry losing the election.

Bush’s action was announced minutes before the Senate Foreign Relations Committee was to have voted on the nomination.