Minnesota Rep. Betty McCollum wins primary 

Minnesota Rep. Betty McCollum wins primary 
© Greg Nash

Rep. Betty McCollumBetty Louise McCollumOVERNIGHT ENERGY: Trump extends Florida offshore drilling pause, expands it to Georgia, South Carolina | Democrats probe Park Service involvement in GOP convention | Sanders attacks 'corporate welfare' to coal industry included in relief package Democrats probe Park Service involvement in GOP convention Overnight Energy: EPA chief outlines vision for agency under 'Trump's second term' | Agency sued over decision not to regulate chemical linked to fetal brain damage MORE won the Democratic primary in Minnesota's 4th District on Tuesday as she looks to win an 11th term in November. 

McCollum won with 84 percent of the vote after nearly a third of precincts had reported, according to The Associated Press.

She defeated four Democratic challengers in the primary.

The race between Republicans Gene Rechtzigel and Sia Lo was not yet called early Wednesday morning, with the GOP candidates separated by fewer than 400 votes with 100 percent of precincts reporting, according to the AP.

— This report was updated on Aug. 12 at 6:13 a.m.