Congress budgeted hundreds of millions of aid for the PA back in 2015 for the 2015-16 budget cycle. The US sent about $335 million in 2015. In 2016, two Republican Reps put a hold on paying out the remaining $221 million on the grounds that they believed that the PA had used the money for things they weren't supposed to use it for, such as applying to various international orgs for sovereign status.
Hold requests like this from the jurisdictional committees are generally respected, but not legally binding. The State Department held the money until Friday morning of Inauguration Day. Right before leaving office, Kerry sent a message to Congress announcing he had transferred the $221 million to the PA.
Problem. Inauguration Day is a federal holiday. So State Department personnel needed for a money transfer were not available until Trump became President. Whereupon the State Department informed the PA that, despite being told by Kerry on Friday the check was in the email, they were going to hold the money pending review by the Trump Administration. We'll see how that goes.
Moral: If you are going to be a dick to people, don't wait until the last minute. If Kerry didn't want to respect the hold, he could have transferred the money any time before January 20. But he didn't want to get tagged in a nasty publicity fight, particularly after crapping all over Israel in his speech after the US abstention. So -- tee hee -- he figgured to be a dick on the way out, making his message to Congress that he was giving the Rs a middle finger on this his final gesture on his way out the door.
Except it backfired. Because if you don't have the moral courage to pull the trigger in public, then you are simply being a vindictive dickweed. Next time, if this is really about principle, have the guts to do it in public and take the heat.