White served as a member of the Virginia House of Delegates, representing Hampshire County, and later served as a member of the Virginia State Senate, representing Berkeley, Hampshire, Hardy, and Morgan counties.
[6][7] White was elected to represent the multi-member electoral district of Hampshire County in the Virginia House of Delegates for three terms: 1794, 1809 to 1813, and 1818 to 1823.
[8][15][16][17] During the 1809 election for Hampshire County's two seats in the Virginia House of Delegates, White ran against fellow Federalist Alexander King, and Democratic-Republicans William Donaldson and Jonathan Pugh.
[20] Following his election along with Ephraim Dunn in 1821, White returned to the Virginia House of Delegates, representing Hampshire County.
[9][31] Following his term in the United States House of Representative, White continued to operate his farms on the Cacapon and North rivers.
[1] In 1823, White was elected as a member of the Virginia State Senate, defeating opponent candidate Ignatius O'Ferrall.
[1][3][9][32] White's seat in the Virginia State Senate represented District 6, which consisted of Berkeley, Hampshire, Hardy, and Morgan counties.
[36] White's inquiry was referred to the senate's Committee of Privileges and Elections for "consideration and a report of their opinion thereupon to the House.
"[36] The following day, on Friday, January 2, 1824, the Committee of Privileges and Elections delivered their opinion: White should vacate his senate seat upon his acceptance of the position of Hampshire County sheriff, and the sheriffs of the senate district's four counties were directed to hold a special election to "supply the vacancy occasioned.