Long lines are exacerbated by electronic voting machines. If there aren't enough machines, the queues just keep growing. In places with paper-based voting, additional voting booths can be cobbled together from cardboard boxes on spare desks and tables, if need be.

Still, even with old-school paper ballots, we're seeing stories of long queues. My fear is that this will convince our political leaders that vote-by-mail is the solution. ("It works for Oregon, so it will clearly work everywhere else!") VBM is attractive in that there's never a line. It's also clearly a disaster in that it makes it far too easy to sell your ballot.