DES MOINES, Iowa — Rock concert rallies versus intimate town halls.
Adoring groupies versus committed voters.
Sweeping promises versus pragmatic proposals.
It doesn't matter whether Hillary Clinton is competing against Democrat Bernie Sanders or Republican Donald Trump — one concern is much the same.
Sanders and Trump are outsider candidates riding a wave of populist excitement. Clinton is viewed as a traditional, establishment choice.
Clinton has won far more votes than any other 2016 candidate. But if she moves into a general election matchup with Trump, she may continue to be dogged by questions about voter enthusiasm — especially as Trump pledges to continue his raucous rallies.