A debate moderator apologized to Republican New Hampshire Senate candidate Scott Brown Thursday night after accusing him on-air of botching his state geography -- though Brown technically was correct. 

The meandering conversation about New Hampshire regions started after WMUR reporter James Pindell asked Brown at the debate Thursday about what is going "right" and "wrong" in the economy of Sullivan County, which hugs the western edge of New Hampshire. 

Scott, who used to represent Massachusetts in the Senate, has faced "carpetbagger" accusations throughout his campaign to unseat Democratic Sen. Jeanne Shaheen in New Hampshire. In response to Pindell's question, Brown launched into a general answer about different regions of the state. 

"Geography plays a role along the southern border. We have more jobs, we have more opportunity, infrastructure, and other opportunities up north are difficult," he said. "One of the biggest opportunities is tourism. One of the biggest opportunities are ski areas and trails for snowmobiles -- I support those efforts." 

Pindell then interrupted to remind Brown they were talking about Sullivan County. "I think you were talking about the North Country," he said. 

Brown responded: "I'm talking about any place past Concord, actually, and the challenges of our state." 

See the Fox News 2016 battleground prediction map and make your own election projections. See Predictions Map →

This is where the disagreement arose. After Brown listed several "challenges," Pindell interrupted again, his voice raised. 

"Sullivan County is west of Concord," he said. "It's not north of Concord, Senator Brown. So what do you see as going well and what's not going well there?" 

Brown maintained that "the challenges are the same in every county in our state." 

Pindell then pitched to Shaheen, with the introduction, "Of course you've been that county's governor and senator for 12 years." 

(The video, below, was posted by the state Democratic Party, with a headline accusing the Republican nominee of being "clueless" on the topic.)

[youtube EXDK8nQF0xw] 

Brown's campaign reportedly claimed afterward that the GOP candidate was referring to Mount Sunapee, a ski resort in Sullivan County he had visited. 

Though New Hampshire Democrats seized on the exchange to mock Brown, Pindell later acknowledged that, while Sullivan County is west of Concord, much of it also lies north of the capital. 

Pindell also went on air to apologize. 

"I said that Sullivan County was west of Concord, not north of Concord. The truth is, it's both. So on this point, Scott Brown was right, I was wrong, and I apologize to Scott Brown and to both campaigns," he said. 

[youtube lsrjHxeVjZA]

The incident was reminiscent of an exchange during a 2012 presidential debate where CNN's Candy Crowley corrected Mitt Romney on a point about Benghazi, though the matter was in dispute.