Soon after assuming the office of the presidency in January 2017, President Donald Trump filed preliminary paperwork that laid the groundwork for re-election in 2020.
Currently, 20 Democratic contenders are lined up to challenge Trump — making for one of the largest and most diverse primary fields in recent history. So far, an additional four Democrats have dropped out of the race.
While California Rep. Eric Swalwell dropped out of the presidential race to run for re-election in the House on July 8, billionaire Democratic activist Tom Steyer — also from California — jumped into the race less than a day after, pledging to spend at least $100 million on his campaign.
Since then, former Gov. John Hickenlooper has also dropped out to run for US Senate, Gov. Jay Inslee of Washington quit the race on August 21 to run for a third term, Rep. Seth Moulton of Massachusetts dropped out to run for re-election, and Sen. Kirsten Gillibrand ended her campaign, too.
Former Vice President Joe Biden, six current and former US Senators, four current and former members of the House of Representatives, three mayors, one governor, two businessmen, and one prominent author are now in the race.
Trump is also facing opposition within his own party. Former South Carolina governor and Rep. Mark Sanford, former Massachusetts governor Bill Weld, and former GOP congressman and conservative radio host Joe Walsh are both challenging Trump in the Republican primary.
Here are all the major party candidates running for president in 2020: