2006Final results
2006 election for California's 4th District
U.S. House · California
John Doolittle (R) won with 49.1% of the vote, defeating Charlie Brown (D) by 3.2 points.
John DoolittleRepublican · winner
49.1%135,818
Charlie BrownDemocrat
45.9%126,999
Dan WarrenLibertarian
5.1%14,076
276,893 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 2006
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Charlie BrownJohn Doolittle
$1.7M
Raised by the campaign
$2.4M
$1.7M
Spent by the campaign
$2.4M
$63.4K
Cash on hand
$44.4K
Campaign money: FEC, through Dec 31, 2006.
Source: FEC campaign filingsUpdated Dec 31, 2006