2020 Presidential candidates

As the 2020 presidential campaign heats up, more and more politicians are joining in on the race. On the Republican side so far, only Donald Trump has announced his bid for reelection. But the number of Democrats who have declared they are running is steadily increasing. This includes Sen. Elizabeth Warren (D-MA), Sen. Kamala Harris (D-CA), Rep. Tulsi Gabbard (D-HI), Sen. Kirsten Gillibrand (D-NY), Former San Antonio Mayor and HUD Secretary Julían Castro, South Bend, Indiana Mayor Pete Buttigieg, Former Rep. John Delaney, Andrew Yang and Rep. Cory Booker (D-NJ). Who knows who will announce their candidacy next?