INDIANAPOLIS (AP): Democrat John Gregg has selected Indianapolis state Rep. Christina Hale as his running mate in the Indiana governor’s race.

A person with direct knowledge of the campaign’s decision confirmed that Gregg has picked Hale to run for lieutenant governor. The official spoke to The Associated Press on condition of anonymity because the person wasn’t authorized to speak in advance of Wednesday’s official announcement.

Gregg will formally introduce Hale at the downtown Indianapolis Arts Garden. Gregg’s campaign declined to comment Tuesday night.

Gregg and Republican Gov. Mike Pence are engaged in what’s shaping up to be a fierce rematch of the 2012 election that Pence narrowly won.

Pence will be on the November ballot with Lt. Gov. Eric Holcomb, who took office in March after Pence’s 2012 running mate resigned.