Super Tuesday is the biggest day so far for the 2024 US election calendar. Voters in 15 states and one territory, American Samoa, will hit the polls today (5 March).
Eyes are on the Republican presidential primaries, where Donald Trump and Nikki Haley continue to face off.
Trump has already picked up major primary wins in several states, while Haley just won her first primary this week in Washington, DC.
Other key races to watch are the House and Senate seats in California, Texas, Alabama, Arkansas and North Carolina.