Democrats are pushing for an amendment that would allow Congress to rein in campaign spending. It has no chance of passing, highlighting how hard it is to change the US Constitution.
Republicans worry some of their primaries might produce tea party nominees who could be weak general election candidates. If victorious, others could fundamentally change the character of the Senate GOP. Unexpectedly close races could be a sign of enduring strength for the tea party.
Bill Clinton, still ranked as one of the most popular politicians in the US, carried the Bluegrass State twice in presidential campaigns. But his stumping for the Democrat trying to unseat Sen. Mitch McConnell is personal.