In 1999, the Euro currency was introduced while Bill Clinton was acquitted in his impeachment trial. Several significant tornadoes hit Oklahoma and the anti-globalization movement had its first major protest in Seattle. The 2000 census recorded a population of 281 million people and the Supreme Court ruled Microsoft violated antitrust laws. In the disputed 2000 election, George W. Bush and Al Gore held a close race until the Supreme Court ruled in Bush's favor, while Hillary Clinton won a Senate seat.