Karen Simpson holds a Bachelor of Arts in psychology and a Master of Arts in community counseling. She began her career in residential services before transitioning to child protective services, where she spent over a decade in various roles, including program management. Simpson then moved to the public sector, gaining experience in candidacy and campaign finance, followed by a role in state retirement agency training and education. Throughout her career, Simpson has demonstrated leadership in various capacities, including public service and membership in multiple advocacy groups.

Karen Simpson's political identity is marked by a unique blend of progressive environmental advocacy and stringent domestic violence protections, underpinned by her personal experiences of domestic abuse. Her support for carbon-free electricity by 2035 juxtaposes with her nuanced stance on trash incineration, revealing a strategic approach to environmental policies. Simpson's legislative efforts to remove the statute of limitations on workplace sexual harassment and establish a state registry for domestic violence offenders reflect a deeply personal commitment to safeguarding vulnerable populations. Despite her religious affiliations and background, Simpson's policy positions often diverge from traditional conservative viewpoints, highlighting an ideologically agile approach to governance. This tension between her personal history and policy stances invites further exploration into how she reconciles these elements in her political philosophy.