Can Formula E rediscover itself in Portland, crack America?

Formula E once had everything F1 wanted. Now it's searching for relevance. Manuel Romano/NurPhoto via Getty ImagesTo a backdrop of sweeping, mid-season leadership changes, Formula E is making another attempt at cracking the United States. Saturday's race in Portland puts the all-electric open-wheel series in competition with IndyCar for popularity and spectacle, taking it to a permanent raceway rather than its usual temporary street circuits. Can the series make an American breakthrough on the fourth time of asking?

As weird as it sounds, go back six or seven years and Formula E had everything Formula One wanted: growing manufacturer interest, a thriving digital presence that had struck…