Since its first convention in 1856, the Republican Party has had ten presidential elections in which no candidate coming into the convention had a majority of delegates.The first may the most famous.
In seven of those conventions, the GOP did not nominate the person who came in with the most delegates.
Six of the GOP’s ten brokered conventions have produced a nominee who went on to become president, with five of them winning the popular vote. By contrast, in the ten elections since 1960 in which the GOP was not nominating an incumbent, the Republican nominee has won four times.
In 1860, New York Sen. William H. Seward entered the convention as the prohibitive favorite, with 37 percent of the delegates. After three ballots, the convention settled on the distant second-place contender, who had only 22 percent of the delegates. You may have heard of former Illinois Rep. Abraham Lincoln.