BOSTON (CBS) – After days of waiting for mail-in ballots to be counted in several communities, Jake Auchincloss declared victory in the Democratic primary in the 4th Congressional District.

“I am a progressive democratic, I am a pragmatic progressive and I will act as such in Congress,” said Jake Auchincloss.

READ MORE: Buzzy Cohen On Guest Hosting 'Jeopardy!' Tournament Of Champions: 'I Had To Think About The Game In A Totally Different Way'

On Thursday, mail-in ballots that were turned in on time Tuesday night but not counted, were tallied in Newton, Wellesley and Franklin.

Jake Auchincloss spoke with media Friday after winning the Democratic nominee for the vacant 4th congressional district seat. (WBZ-TV)

“I feel a little tired. I think it is important that every ballot that was lawfully cast before 8 p.m. on Tuesday was counted,” said Auchincloss.

Auchincloss beat Jesse Mermell by 2,000 votes.

“I won’t be filing for a recount but that doesn’t mean that I’m content with the returns,” said Jesse Mermell.

During her roughly eight-minute concession speech posted on YouTube, Mermell raised concerns about what she calls gaps in the process.

READ MORE: Watch Live @ 11: Gov. Baker Update On Reopening Following New CDC Mask Guidance

“The facts that votes cast over a one month period were still being counted at almost two o’clock this morning nearly 54 hours after the polls closed indicates that we have some work to do,” said Mermell.

Secretary of State William Galvin defended the state’s mail-in ballot process.

“The issue that she specifically referred to affected one community namely the town of Franklin,” Galvin said.

Galvin said his staff stepped in to address the issue in Franklin.

“I believe what we saw in Franklin was unique to Franklin, but doesn’t mean it can’t happen other places so it re-intensifies our need for very strict procedures going into November,” said Galvin.

Auchincloss said he’s proud of the integrity of this election as he now moves onto the general election.

MORE NEWS: 'People Want To See More,' Artist Turns Utility Box On Busy Bedford Street Into Art

He’ll will be facing Republican Julie Hall. Friday he would not says if he’s willing to debate Hall before the November election.

Mike LaCrosse