Cruz and Kasich have now both suspended their campaigns, leaving Trump as the sole contender for the Republican nomination. That still isn’t stopping people from trying to figure out how to nominate someone else, but the chances of that are looking pretty grim right now.
After the caucus fiasco on Tuesday, it looks like there’s now a lot of support in Colorado to bring back presidential primary elections. Democrats’ turnout was too big and not everyone really got to participate, while the Republicans didn’t even bother voting on candidates. Many have pointed out that the whole process is hugely undemocratic, and primaries could help ameliorate the worst problems of caucuses.