A small group of Democrats delayed but didn't derail President Bush's official re-election. Both the Republican controlled House and Senate overwhelmingly rejected a challenge to the results in Ohio, where Democrats said many voting irregularities made the results suspect. Congress then certified the president's victory. Vice President Dick Cheney announced the results of the electoral vote, with President Bush winning by a margin of 286 to 251 over Senator John Kerry. One Kerry elector voted for vice presidential nominee John Edwards. The Democratic effort prompted bitter squabbling that starts the new Congress on a sharply partisan tone. House Majority Leader Tom DeLay called the Democratic challenge "a crime against the dignity of American Democracy."