Every four years a subset of pundits and political junkies speculate about a brokered convention where no candidate comes into the convention with enough delegates to secure the nomination on the first ballot, thus leading to discussions, multiple ballots and deal-making before a nominee is finally chosen. For much of American history this was common, but in the last half century or so that has changed. The last genuinely brokered Democratic convention was 1952 when the eventual nominee was Adlai Stevenson. Early opposition to Donald Trump among many Republicans led to speculation that the 2016 Republican convention would be brokered, but it didn’t work out that way.