Eight weeks from today, millions of Americans will choose their next congressperson. Poll after poll tells us that the state of the economy will shape their choice: it’s the top issue for voters by a wide margin and most Americans are in a sour mood about it.That’s not the end of the story.We’ve learned from previous elections that voters consider a wide range of issues when they vote. The "economy" has different meanings to voters. Optimism doesn’t win over voters on pocketbook issues. And this year, while voters aren’t happy with President Donald Trump’s economy, that hasn't yet made them en...