Vox’s guide to the 2020 presidential candidates

The 2020 presidential race is officially underway, and many Democrats are hoping to take their shot at unseating President Trump. Democratic Sens. Elizabeth Warren, Kamala Harris, Tulsi Gabbard, and Cory Booker have all thrown their hats into the ring. Several more high-profile Democrats could announce in the coming months, including Joe Biden, Bernie Sanders, Sherrod Brown, Amy Klobuchar, and more. Former Starbucks CEO Howard Schultz has also been exploring a potential run as an independent candidate, prompting some on the left to worry that an independent could win swing votes and hurt Democrats’ chances of beating Trump.

Though the Iowa caucuses are still a year away, the candidates will spend 2019 touring the nation and raising money as they attempt to establish frontrunner status in what promises to be a very crowded race. And the Democrats will have 12 debates, starting with the first in June 2019.

Here, you’ll find everything you need to know to understand the 2020 election: who the candidates are, their policies, the key dates for debates and primaries, and more.