1988Flipped from RepublicanFinal results
1988 election for U.S. Senate in Connecticut
U.S. Senate · Connecticut
Joseph I. Lieberman (D) won with 49.8% of the vote, defeating Lowell P. Weicker Jr. (R) by 0.7 points, a seat Republicans won last time.
Joseph I. LiebermanDemocrat · winner
49.8%688,499
Lowell P. Weicker Jr.Republican
49.0%678,454
Howard Avory Grayson Jr.Libertarian
0.9%12,409
Melissa M. FisherOther party
0.3%4,154
1,383,526 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 1988
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.
Joseph I. LiebermanLowell P. Weicker Jr.
$2.7M
Raised by the campaign
$2.5M
$2.6M
Spent by the campaign
$2.6M
$79.8K
Cash on hand
$52.5K
Campaign money: FEC, through Dec 31, 1988.
Source: FEC campaign filingsUpdated Dec 31, 1988
The candidates
Joseph I. Lieberman (D)Lowell P. Weicker Jr. (R)
Also on the ballot: Howard Avory Grayson Jr. (Libertarian), 0.9%; Melissa M. Fisher (Other party), 0.3%