The intense scrutiny toward the relationship between President Trump’s inner circle and Russia appears to have no end in sight. Regardless of whether or not any wrongdoing was committed, we may suffer an economic cost. It’s called opportunity cost — the things we give up in the way of policy action while doing battle with the Russia problem.

It is important that we learn the whole story, from both the president and his critics. But Trump and the media must also be careful not to divert all of their scarce attention and resources away from other priorities.