Before winning his House seat in a 2021 special election, he served as chief of staff at the U.S. Department of Health and Human Services under President Trump, overseeing a staff of over 83,000.
In 2026 he pushed for a special legislative session to make 'birth tourism' a felony in Texas.
Harrison’s take on Texas values
He was a vocal advocate for passing school vouchers (education savings accounts) and voted to block an amendment that would have let voters decide on vouchers directly, instead of leaving it to the Legislature. [Ballotpedia; Wikipedia]