HARRISBURG — For the Pennsylvania Senate, the election didn’t necessarily end Nov. 6.

The chamber’s Republican majority is questioning the residency qualifications of a newly elected Democrat who flipped a Republican-held Pittsburgh-area seat by a mere 793 votes, injecting tension into a normally quiet December.

A vote against seating Democrat Lindsey Williams could turn swearing-in day on Jan. 1 — normally a celebratory event attended by family members of senators — into a bare-knuckled partisan fight.

“Do they have the will to do this?” said Larry Otter, a Pennsylvania lawyer who specializes in election law. “They probably have the votes, but you’ve got to have the will to do it, too, because if they try and do it, then they’ll have to schedule a special election, and she could win again.”

Counting Williams, Republicans hold a 29-21 majority in the chamber after a tough election cycle in which they lost five seats and their super majority.

Should Republicans reject Williams, the Pittsburgh area could see hotly contested special elections in two closely divided Senate districts, including one to replace Congress-bound Republican Guy Reschenthaler.

The chamber’s top Republican, President Pro Tempore Joe Scarnati of Jefferson County, has given Williams until Monday to submit information that makes her case.

The question revolves around Williams’ whereabouts four years before this past election.

Williams, 35, has maintained that she accepted a job offer with the Pittsburgh Federation of Teachers in the days before Nov. 6, 2014, and had begun moving things from Maryland and finding an apartment by then. Williams, a Pennsylvania native, has lived most of her life in the state.

Republicans point to her Maryland address on a Pennsylvania speeding ticket in November 2014, her December 2014 voter registration in Pennsylvania and her social media postings suggesting she worked at the International Brotherhood of Teamsters in Washington, D.C., through November.