Shelton was chosen by her colleagues to serve as Legislative Secretary and Majority Whip[1][2] and Chairperson of the Committee on Higher Education and the Advancement of Women, Youth, and Senior Citizens.

[7] Shelton has earned a master's degree in public administration and a Bachelor of Arts in political science and communication from the University of Guam.

She is a parish council member and CCD teacher at Nino Perdido Y Sagrada Familia Catholic Church in Asan, Guam.

The solar farm contracts approved in 2018 will bring 120 megawatts online for GPA by 2022, meeting the 25% renewable energy target 13 years early.

The ban on using nicotine products in certain areas is called the Natasha Protection Act, named after Shelton's best friend who died at a young age of cancer.

[13] She collaborated with the Office of the Public Defender to present on issues regarding elder law, which was broadcast on the Legislature Channel.

[14] She also wrote to Department of Interior Assistant Secretary for Insular and International Affairs Douglas Domenech for help in addressing labor shortage and homelessness.