Super Tuesday 2024 live updates as 15 states vote in today's primaries

It's Super Tuesday, and voters are casting their ballots in presidential primaries and caucuses in over a dozen states, awarding over a third of all of the delegates that are available in both the Republican and Democratic nomination primary process. Results will be updated here throughout the evening.

It won't be mathematically possible yet for former President Donald Trump to amass enough delegates to secure the nomination, but the outcome should provide a clearer sense of whether he'll continue his dominance over Nikki Haley in the remaining states. Since 1988, when the first major Super Tuesday took place, no Republican has won the presidential nomination without winning the most states on that day. 

President Biden does not face a serious primary challenger for his reelection bid.