Bernie Sanders mini-winning streak ended Tuesday night in Kentucky, a state analysts expected he could win.
The loss could take some wind out of supporters' sails at a critical time as they face increasing pressure to unify the Democratic Party behind likely nominee Hillary Clinton.
But it was a mixed night for the candidates. Sanders pulled out a comfortable single-digit win in Oregon, where he is likely to walk away with a solid block of delegates.
The outcome will have negligible impact on either candidate's path to the nomination, thanks to Democrats' proportional delegate allocation system.
Instead, the most meaningful impact will likely be on the morale of Sanders supporters as he faces a virtually impossible path to winning the nomination.