Fresh off a jail stint that allowed him to serve in the Virginia House on work release, and a trip to Georgia to be with a teenager giving birth to a baby that may or may not be his, Del. Joseph D. Morrissey was collecting signatures Saturday to run for state Senate.

Morrissey (I-Henrico), 57, said he will formally announce next week that he will challenge Sen. Rosalyn R. Dance (D-Petersburg) in the June Democratic primary.

In December, Morrissey pleaded guilty to a misdemeanor stemming from his relationship with his teenage receptionist, who gave birth in Georgia this month. Morrissey has declined to say if the child is his. Voters in the district — which spans eastern Henrico County, Charles City County and a small part of Richmond — sent him back to the legislature as an independent in a January special election.

Later in January, four new felony charges were unsealed in a second criminal indictment against Morrissey, alleging that he presented forged documents in the original sex-scandal case. A trial date is set for next month. Morrissey has denied wrongdoing.