Yes you may.  PA members are active in the political life of the community.  It is expected that some members will be involved in candidates’ political campaigns.  Making political donations and volunteering to help a candidate does not disqualify a member from participating at a PAC endorsement meeting.  PA PAC bylaws do require that a member who is a candidate’s campaign manager or treasurer or otherwise in a candidate’s close inner circle disclose this relationship before participating in debate.