A native of Allentown, Pennsylvania, Miller is the son of Lehigh County Court of Common Pleas Judge Michele Varricchio.
He graduated from Allentown Central Catholic High School in 2013 and subsequently attended Pennsylvania State University, where he earned a bachelor's degree in finance in 2017.
[4] Miller worked as a project management consultant for IBM before becoming a part-time realtor in Allentown.
[5] Miller narrowly won the 2022 Democratic primary for the open seat, defeating his closest competitor by only 48 votes.
[8] At the age of 28, Miller was the youngest person elected to the State Senate in 135 years.