He had like 12 paragraphs worth of reasons he is voting for Trump and at the end encouraged everyone to vote for him....that is an endorsement.
“that is an endorsement”
“I [name] affirm that if I do not win the 2016 Republican nomination for president of the United States I will endorse the 2016 Republican presidential nominee regardless of who it is. I further pledge that I will not seek to run as an independent or write-in candidate nor will I seek or accept the nomination for president of any other party.”
Better late than never. I suppose we’ll see if he works to get Trump elected.