Final answer:
The U.S. Supreme Court ruled in favor of George W. Bush in Bush v. Gore case, declaring him the winner of the 2000 presidential election due to the Electoral College system, despite receiving fewer popular votes than Al Gore.
Step-by-step explanation:
The U.S. Supreme Court's ruling in Bush v. Gore declared Republican George W. Bush as the winner of the 2000 presidential election with a majority in the Electoral College. This decision was based on the argument that the method of manual recount being used in Florida violated Bush's rights. Despite receiving approximately 540,000 fewer popular votes nationally than his Democratic opponent Al Gore, Bush won the election due to the Electoral College system.