Primary elections

New data: Democrats crushing Republicans in 2018 elections

Note: The 2018 data is preliminary through Sept. 12 and excludes runoffs, special elections and candidates who ran unopposed. Prior data includes unopposed candidates if they were on the ballot. Louisiana will hold their party primaries on Nov. 6 followed by a general election on Dec. 8; Data: Federal Election Commission (1998 to 2016) and Associated Press (2018); Chart: Chris Canipe/Axios

Riding a surge of enthusiasm in opposition to President Trump, more Democrats turned out in the primaries for House elections than Republicans this year — the first time that has happened since 2008.

Why it matters: 2008 was the last time Democrats won a majority in the House. They lost it in 2010, when Republican primary turnout skyrocketed and Democratic turnout plummeted — the reverse of what's happening now.

By the numbers: Democratic socialist victories in the 2018 midterms

Julia Salazar defeated Martin Dilan, who was running for his ninth term. Photo: Scott Heins/Getty Images

Brooklyn voters have picked Julia Salazar for the New York state Senate making her the latest Democratic socialist to oust an incumbent.

Why it matters: Salazar’s victory is stunning considering she was plagued by negative news and attacks from the right about everything from her past relationships to her progressive politics. But her win shows this group's growing movement in 2018.