Former Sen. Russ Feingold, D-Wis., made his second Senate endorsement of the cycle Wednesday, throwing his support behind Rep. Tammy Baldwin's candidacy.
The endorsement isn't a surprise. The two served in Congress together and enjoy the same liberal base of support in Dane County. Feingold's first endorsement this cycle went to Elizabeth Warren in Massachusetts. Warren and Baldwin have set up a joint fundraising group.
Feingold was a unique voice in the Senate, a liberal Democrat who flashed a maverick streak that meant he often found himself at odds with his own party. His backing of Baldwin, is, as Ben Smith wrote about his backing of Warren, a sort of passing of the torch.