2016Final results
2016 election for U.S. Senate in Connecticut
U.S. Senate · Connecticut
Richard Blumenthal (D) won with 63.2% of the vote, defeating Dan Carter (R) by 28.6 points.
Richard BlumenthalDemocrat · winner
63.2%1,008,526
Dan CarterRepublican
34.6%552,621
Richard LionLibertarian
1.1%18,174
Jeffery RussellGreen
1.0%16,692
1,596,051 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Richard BlumenthalDan Carter
$7.4M
Raised by the campaign
$383.9K
$5.1M
Spent by the campaign
$375.8K
$3M
Cash on hand
$0
Campaign money: FEC, through Dec 31, 2016.
Source: FEC campaign filingsUpdated Dec 31, 2016
The candidates
Richard Blumenthal (D)Dan Carter (R)
Also on the ballot: Richard Lion (Libertarian), 1.1%; Jeffery Russell (Green), 1.0%