| Results Tracker for CD42 | |||
|---|---|---|---|
| Date | Candidate | Votes | Percent |
| 2012-11-08 | Ken Calvert (R) | 99,110 | 61.40% |
| 2012-11-08 | Michael Williamson (D) | 62,409 | 38.60% |
| 2012-11-10 | Ken Calvert (R) | 109,352 | 61.20% |
| 2012-11-10 | Michael Williamson (D) | 69,253 | 38.80% |
| 2012-11-11 | Ken Calvert (R) | 117,407 | 61.10% |
| 2012-11-11 | Michael Williamson (D) | 74,776 | 38.90% |
| 2012-11-12 | Ken Calvert (R) | 117,407 | 61.10% |
| 2012-11-12 | Michael Williamson (D) | 74,776 | 38.90% |
| 2012-11-16 | Ken Calvert (R) | 122,328 | 61.10% |
| 2012-11-16 | Michael Williamson (D) | 77,917 | 38.90% |
| 2012-11-20 | Ken Calvert (R) | 127,957 | 60.70% |
| 2012-11-20 | Michael Williamson (D) | 82,688 | 39.30% |
| 2012-11-21 | Ken Calvert (R) | 127,957 | 60.70% |
| 2012-11-21 | Michael Williamson (D) | 82,688 | 39.30% |
| 2012-11-28 | Ken Calvert (R) | 130,245 | 60.60% |
| 2012-11-28 | Michael Williamson (D) | 84,702 | 39.40% |
| 2012-11-29 | Ken Calvert (R) | 130,245 | 60.60% |
| 2012-11-29 | Michael Williamson (D) | 84,702 | 39.40% |
| Current | Ken Calvert (R) | 130,245 | 60.60% |
| Current | Michael Williamson (D) | 84,702 | 39.40% |
| Change | Change in Votes | Percentage Change | |
| Increase from Election Day Results | Ken Calvert (R) | 31,135 | 31.4% |
| Increase from Election Day Results | Michael Williamson (D) | 22,293 | 35.7% |