Mike Huckabee's top aide, Sarah Huckabee, tells Politico a little more about why her Dad won't endorse in NY-23.
[She said he] had decided not to endorse Hoffman because he was directing the resources of his political action committee, Huck PAC, to Republican campaigns.
She added that Huckabee had been scheduled to attend the local dinner for nearly a year and that “it would have been inappropriate for him to do anything in this race personally for Hoffman until he had fulfilled his obligation to the event’s awards ceremony.”
Re: the first paragraph, you can endorse without giving money.
Re: the second paragraph -- even accepting his odd conclusion on decorum, he's done with his speech at the awards ceremony. Theoretically, he should be loosed from his chains.