Central committees are often filled with aspiring party hopefuls, who at some point might be candidates for a vacancy in elected office or within the broader party structure.
"Oftentimes, they might be voting for themselves for something," he said.
In addition to Welch, former Baltimore City Councilman Nick J. Mosby applied to fill Pugh's seat. Mosby dropped out of the Democratic primary for mayor and endorsed Pugh, helping clear the field for her eventual victory.
Pugh's spokesman said the mayor neither publicly nor privately endorsed a candidate.