Colorado is one of 16 states holding a presidential primary on Super Tuesday, with questions on whether former President Donald Trump will appear on the ballot finally silenced following a Supreme Court ruling on Monday.

Voting begins at 9 a.m. Eastern time and will go until 9 p.m. Democrats can choose between several presidential candidates, most notably incumbent President Joe Biden. However, Biden is facing a growing challenge from his own party and voters who are unhappy with his response to the Israel-Hamas war.