2006Final results
2006 election for Missouri's 1st District
U.S. House · Missouri
Wm. Lacy Clay (D) won with 72.9% of the vote, defeating Mark J. Byrne (R) by 48.2 points.
Wm. Lacy ClayDemocrat · winner
72.9%141,574
Mark J. ByrneRepublican
24.7%47,893
Robb E. CunninghamLibertarian
2.5%4,768
194,235 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.
Wm. Lacy ClayMark J. Byrne
$443.4K
Raised by the campaign
$75.6K
$464.7K
Spent by the campaign
$72.6K
$133.6K
Cash on hand
$3K
Campaign money: FEC, through Dec 31, 2006.
Source: FEC campaign filingsUpdated Dec 31, 2006