On this day in 2000, Vice President Al Gore officially conceded defeat to Texas Gov. George W. Bush in the presidential election. | KOAT

On December 12, 2000, the Supreme Court ruled in Bush v. Gore, ending five weeks of recounts in the presidential contest between Texas Governor George W. Bush and incumbent Vice President Al Gore. The Court's 5-4 ruling ultimately preserved Bush's razor-thin lead, sending him to the White House. | American Experience | PBS

Joe Biden became the president-elect today. But Trump has shown no signs of conceding the election, instead promising to challenge the result through lawsuits. We take a look back at concession speeches from candidates and elections past from President Jimmy Carter (1980), Walter Mondale (1984), Michael Dukakis (1988), President George H.W. Bush (1992), Al Gore (2000), John Kerry (2004), John McCain (2008), Mitt Romney (2012) and Hillary Clinton (2016). | POLITICO