2009 House of Delegates - District 21 - Regular General
| Candidate | Spent | Votes |
|---|---|---|
| Villanueva, Ron (R) Winner | $501,844 | 7,673 (49.94%) |
| Mathieson, Robert W* (D) | $799,297 | 7,659 (49.85%) |
2007 House of Delegates - District 21 - Regular General
| Candidate | Spent | Votes |
|---|---|---|
| Mathieson, Robert W (D) Winner | $758,412 | 4,443 (57.51%) |
| Welch, John J III* (R) | $675,302 | 3,251 (42.08%) |