Aletheia McCaskill holds a diverse educational background, including degrees in information systems, early childhood development, and early elementary education. McCaskill has accumulated extensive experience in both the private and public sectors, notably managing institutional risk in high-finance before transitioning to the public sector. She has been actively involved in advocating for fair wages and working conditions through her membership in SEIU Local 500. McCaskill's leadership roles include serving on various committees within the Maryland House of Delegates, focusing on appropriations, health, social services, and pensions.

Aletheia McCaskill's political identity is marked by a distinctive focus on early childhood education and labor rights, blending these seemingly disparate areas into a coherent advocacy platform. Her legislative efforts emphasize economic stability through targeted investments in education, revealing a strategic alignment of social and economic policies. McCaskill's active membership in labor unions and advocacy for teacher and childcare professional rights underscore a commitment to grassroots empowerment. Her approach suggests an ideological agility, balancing progressive stances with a pragmatic focus on tangible, community-driven outcomes.