2008 United States presidential election in Nevada

The 2008 United States presidential election in Nevada was part of the 2008 United States presidential election, which took place on November 4, 2008, throughout all 50 states and D.C. Voters chose five representatives, or electors to the Electoral College, who voted for president and vice president.

Democrat Barack Obama defeated Republican John McCain by 12.5 percentage points. Both candidates heavily campaigned in the state. Although Obama almost always led in polls, some argued that McCain, a nationally prominent senator from neighboring Arizona, had a legitimate chance of pulling off an upset in Nevada. Most news organizations considered Obama to be the favorite in the state, while many still viewed it as a relative swing state. In the previous four presidential elections, the margin of victory in Nevada had always been below 5 percentage points. George W. Bush carried the state twice in 2000 and 2004 while Bill Clinton narrowly won it in 1992 and in 1996. This was the first time since 1964 that a Democrat won an outright majority of the vote in Nevada.

As of the 2024 presidential election, this is the last time a Democratic candidate won Carson City, as well as the last time that a presidential candidate has carried the state by a double-digit margin. Obama's winning margin of over 120,000 votes is the largest in history for a presidential candidate in Nevada, with no one else ever winning by six figures.