I found this statement from Trump. Is this what you are referring to as a full endorsement?
“If the speaker acts decisively, and tough, and gets rid of all of the traps being set by the Democrats, which will economically and, in other ways, destroy our country, he will easily remain speaker.” -Trump
I'd like to see Johnson kicked out and not given a second chance. The statement is disappointing but it sounds more like a warning than a ringing endorsement.