Leach continues to defend himself from what he has called fictional or exaggerated accounts of his behavior involving women. He said he plans to remain in office.
Leach, a longtime legislator from Montgomery County, has said he believes a law firm's review of allegations against him “absolved me of false charges made against me."
A report described “a lengthy pattern of troubling behavior spanning several years regarding Senator Leach’s interactions with a number of women.”
The rally comes one day before a primary for several statewide offices and two days after one of the Democratic front-runners for president excoriated Trump at an event in Philadelphia.
Sims, a Democrat from Center City, has promised to "do better for the women of Pennsylvania."
The exchange marked an unusual departure for the conference, which has largely tried to focus its comments on legislation, rather than individual victims.
This measure differs from abortion bills advancing in other states.
Two Republican lawmakers are pushing to strengthen the state’s control over gun regulations and make it easier for some groups, such as lobbyists, to recoup legal fees to fight cities’ rules.
Though the Pennsylvania legislature has policies on social media use, lawmakers from both parties have provided a string of embarrassing online posts, including several that have gone viral.
Republican state Rep. Stephanie Borowicz of Clinton County has already fielded criticism for delivering a controversial prayer on the floor of the House of Representatives.