With six months and change still to go until November 8, you’ve probably learned more this election cycle than you ever hoped to hear about loony wall-construction-financing schemes, losing unspecified competitions to China, and/or the self-reported approximate dimensions of a certain candidate’s genitalia. The entire spectacle has been hilarious and delightful, even if our grandchildren will immediately conclude that we’ve gone senile when we try to tell them stories about it someday. Often drowned out in this cacophony of absurdity, though, is the fact that 34 Senate seats will ALSO be decided in November. And from a practical, will-anything-get-done-in-Washington-this-decade perspective, control of the legislature matters just as much as holding the White House. In the current C…