According to the Politician’s Dictionary and Guide to Evasive Word Parsing, none of these actions constitute “endorsement”.
An endorsement must be printed on a single sheet of 11.5 x 8 inch paper with the word ENDORSEMENT printed in capital letters on both top and bottom. It must be in this form:
Today, I announce the ENDORSEMENT of blah, blah, blah. With this ENDORSEMENT, I promise to support blah, blah, blah. This ENDORSEMENT blah, blah, blah.
Clearly not an endorsement, so there.
No doubt that that will indeed be their argument. Case closed.