WA Indy: King's disapproval is 4 points lower than Sanders which broke the tie
Not gonna say this is the only reason, but the other 2 in the top 3 could have somewhat of a close relationship with Sanders (Other Independent, Vermont's other Senator)
With this I am 34/35 on this year's Senate races. I really thought Nelson had gotten his sh*t together but I guess Florida is just a Republican-leaning state as opposed to being a swing state now, where the GOP's ceiling is 51% and their floor is 49.999%.