Here are the country's most and least popular senators
Notably, both Republicans in consistently red states and Democrats in deeply blue states have taken a hit.
Arizona Republicans Jeff Flake and John McCain saw 14-point and 12-point drops, respectively, while Rhode Island's Democratic senators Jack Reed and Sheldon Whitehouse both took 20-point hits.
Three Republicans - Senate Majority Leader Mitch McConnell, Flake, and McCain - are viewed negatively by a plurality of their constituents.
McConnell maintained his long-held position as the least popular senator in America, with a 48% disapproval rating, while former Democratic presidential candidate Bernie Sanders held steady as the most popular.
The poll surveyed 140,000 registered voters across the country between April 1 and June 18, 2017.