State Sen. Brittany Pettersen, D-Lakewood, gave birth to a son, Davis James Silverii, on Sunday, at 11:59 a.m. The baby weighed in at 7 pounds and 6 ounces.

Pettersen, baby and father, Ian Silverii, are doing fine, according to Senate Democratic leadership who announced the birth during a Tuesday morning news conference.

Pettersen is likely only the second lawmaker in four decades to give birth during a legislative session. What remains unclear is how long she will be on maternity leave and whether she will be allowed to bring the baby onto the floor of the Senate, which requires a change in the rules.

Silverii is executive director of ProgressNow Colorado.

Pettersen’s absence briefly left the state Senate with 17 Democrats, given that Rep. Chris Hansen, D-Denver, had not yet been sworn in to replace Sen. Lois Court.

That was the first order of business for the Senate on Tuesday, to put him into the seat formerly held by President Pro tem Court, who resigned Jan. 16 to deal with an autoimmune disorder.

So what happens to the bills Court sponsored? According to Hansen and Senate President Leroy Garcia, D-Pueblo, Hansen’s bills in the House and Court’s bills in the Senate basically go away, unless those bills have a co-prime sponsor.

That could include SB65, Court’s fourth and final attempt to restrict the use of cellphones while driving. That measure does not have a Senate co-prime sponsor; Hansen said he has talked to Court about that bill in recent days.

Hansen’s switch to the Senate left an opening in the House for a Democrat on the Joint Budget Committee. Tuesday, Speaker of the House KC Becker of Boulder appointed Rep. Julie McCluskie, D-Dillon, to that position.

Becker said in a statement Tuesday that McCluskie has “earned the trust of her colleagues with her strong work ethic, dedication to detail, and bipartisan approach to legislating. Budget writers will face new challenges for the upcoming year, and I am confident that Rep. McCluskie is ready to join her colleagues in handling these challenges and crafting a budget that reflects the priorities of all of Colorado.”

“I am honored to accept this new assignment, and I’m excited to get to work as the JBC crafts a balanced budget that works for all Coloradans and invests in our state’s future,” McCluskie said. “I am committed to working across the aisle to develop a budget that prioritizes our schools and teachers, expands access to affordable housing, and helps lower the cost of health care for Coloradans.”

Note: This story has been updated to clarify Pettersen’s claim on lawmakers who gave birth during a session.