Ticket-splitting is a perennial phenomenon in American politics. It is a feature that waxes and wanes in the political system based on candidate and party dynamics. Voters selecting one party’s nominee for president and the other party’s candidate for Senate was a more common practice decades ago but recently voters have become predictably partisan. In 2024, polls showed the potential for several splits in key states. With President Joe Biden atop the ticket, polls showed Republican Donald Trump ahead in Arizona, Michigan, Pennsylvania, and Wisconsin, for example, while the Democratic Senate candidates maintained comfortable leads. Kamala Harris replacement of Biden as the Democratic nominee considerably increased uncertainty in swing states and came with the potential to affect ticket-splitting behavior. The 2024 elections offered a chance to examine whether voters were still willing to split their tickets in an increasingly partisan era.