After deleting his first attempt due to a typo, RNC chair Reince Priebus tweeted Tuesday night that, with the suspension of the Cruz campaign, Donald Trump would be the presumptive Republican nominee.

On the surface it looked like nothing more than a (not so successful) call for party unity, but plenty read it as a loud-and-clear message to the candidate who didn’t suspend his campaign Tuesday. John Kasich campaign strategist John Weaver received the message and marked it “return to sender.”