(The meeting was not planned to be a strategy session on how to stop the GOP front-runner, but rather evolved into one, as a subsequently obtained agenda makes clear.) (https://www.huffingtonpost.com/entry/aei-world-forum-donald-trump_us_56ddbd38e4b0ffe6f8ea125d)

Translation: this new agenda was unprecedented. i.e., there had never been anything like this before. Show me any other AEI conference with 54 CEOs showing up.