ST. PAUL — Minnesota state Rep. Jim Newberger has won the GOP primary to take on incumbent Democratic U.S. Sen. Amy Klobuchar this November.

Newberger beat three other candidates Tuesday, but faces an uphill battle in November against the popular Klobuchar, who is seeking a third term in the United States Senate representing Minnesotans. Klobuchar easily won her primary.

Klobuchar won her first two terms by at least 20 percentage points and has been mentioned as a possible presidential candidate in 2020.

Newberger, a paramedic from Becker, has served three terms in the Minnesota House.