Wisconsin split its vote between Trump and Baldwin. Which other states saw split tickets?

Though President-elect Donald Trump swept all seven battleground states last week, Democrats were able to hang on to several hotly contested U.S. Senate seats because of "split-ticket" voters — including in Wisconsin.

Ticket-splitters are voters who split their ballot between candidates of opposing parties. In this case, thousands of voters across the battleground states voted for Trump in the presidential race but Democratic candidates in down-ballot races.

In Wisconsin, that led to Trump carrying the state for the second time since 2016, while Democratic U.S. Sen. Tammy Baldwin was re-elected to her third term.

Here's how many voters split their ticket in Wisconsin and which other states saw similar trends.

More: Gilbert: Wisconsin's Donald Trump-Tammy Baldwin split election explained

How many 'ticket-splitters' were there in Wisconsin?

According to exit polls, Wisconsin didn't actually have that many voters who split their tickets between Trump and Baldwin. Polls suggest 4% of Trump voters in Wisconsin voted for Baldwin, while 3% of voters for Vice President Kamala Harris voted for Republican Senate candidate Eric Hovde.

Baldwin earned about 4,500 more votes than Harris statewide, while Hovde earned 54,000 fewer than Trump. Both Baldwin and Trump won their votes by about nine-tenths of a percentage point.

Which other states split tickets between the U.S. Senate and presidential election?

In addition to Wisconsin, three other battleground states split their votes between Trump and a Democratic U.S. Senate candidate. North Carolina split its ticket by simultaneously electing Trump for president and Democratic Attorney General Josh Stein for governor.

In all the states with split presidential and U.S. Senate results, Trump outperformed the Republican Senate candidate by at least 70,000 votes.

Here are the other "ticket-splitting" states:

• Michigan: Democrat Elissa Slotkin was elected to the U.S. Senate, winning her race against former Republican congressman Mike Rogers by about 21,000 votes. Unlike in Wisconsin, Slotkin underperformed Harris, with the vice president winning about 16,000 more votes statewide than the newly elected senator.

• Nevada: Democratic U.S. Sen. Jacky Rosen defeated Republican Sam Brown to win re-election by about 23,000 votes. Rosen underperformed Harris by just under 4,000 votes statewide.

• Arizona: Democrat Ruben Gallego defeated Republican Kari Lake by about 73,000 votes. Like Baldwin, Gallego outperformed Harris, winning about 91,000 more votes statewide than the vice president.

This article originally appeared on Milwaukee Journal Sentinel: Split-ticket states: Where did Trump and Democratic senators both win?