Two Republican candidates for Congress in the North Country will debate for the second time Thursday evening.

Matt Doheny of Watertown and Elise Stefanik of Willsboro, who are headed to a primary contest on June 24, each would like to get the GOP nomination in the 21st Congressional District, which covers the region from north of Albany across to Lake Ontario and up to the Canadian border.

The campaign has recently taken a turn toward the nasty with negative ads aimed at both candidates from political organizations not directly associated with either Stefanik or Doheny.

They have agreed to a second debate, which will be broadcast from 7-8 p.m. Thursday by WPBS, the Watertown-based public television station; Watertown TV station WWNY, which is hosting the debate; Mountain Lake PBS in Plattsburgh; and North Country Public Radio (NCPR).

NCPR’s David Sommerstein, Jeff Cole of WWNY and WPBS, and Thom Hallock of Mountain Lake PBS will be questioning the candidates. The debate will be moderated by WWNY’s Brian Ashley.

In addition to answering questions, each candidate will make opening and closing statements.

The name of the primary election winner later this month will appear on the Republican line on the November ballot.

Doheny, who worked on Wall Street and returned to the North County in a position to make substantial loans to his campaign, has also secured the Independence Party line in November.

Stefanik, who worked in the George W. Bush White House and with the losing campaign for vice president of congressman Paul Ryan (R-Wisconsin) in 2012, moved to the North Country and declared her candidacy for Congress.

has secured the Conservative Party line.

Democrat Aaron Woolf, a filmmaker from Elizabethtown and Manhattan, and Green Party baker Matt Funiciello of Glens Falls are also running.