Over 13,000 Oklahomans have changed their party affiliation this year ahead of the closed June primary elections, according to a state report.

Since Jan. 1, independent voters comprised the largest shift in party affiliation with more than 6,100 selecting a party, according to data from the State Election Board, which allows them to participate in Oklahoma’s partisan primaries in June and August.

Nearly 2,400 independent voters became registered Republicans while over 3,600 joined the Democratic party, an Election Board report shows.

Read the full story at Oklahoma Voice.