OK. Watched the video and nothing about suspending the campaign. Sounds like he still wants to go all the way to the convention with all the delegates possible.
So basically it sounds like he just verbalizing what everyone already knows, we're reaching the end of the beginning and he's starting the process of turning the revolution over to the grass roots.
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What do we mean by the Revolution? The war? That was no part of the revolution; it was only an effect and consequence of it. The revolution was in the minds of the people, and this was effected from 1760 - 1775, in the course of fifteen years, before a drop of blood was shed at Lexington. -John Adams (Letter to Thomas Jefferson, 1815)