How much do next month’s elections for the US House and Senate really matter? If merely asking the question sounds like a betrayal of civic duty, it shouldn’t. The cliché is that the next race is always “the most important election of our lifetimes.” But some elections have more far-reaching consequences than others. . . .
This time, though, the stakes are relatively high — because the Democrats have both grand legislative ambitions and possession of the White House. . . .