TEB/Duncanpup is trying a "deadly contrast" between his volunteering at a food bank and Trump hosting a lavish Halloween party. Because DUmmies lie routinely, I DDGed "trump halloween party".
* There was a party, and it was lavish.
* It was at MaL (=not at the WH or other Federal properties).
* In looking through articles from ABC News, USA Today, The Daily Beast, The Independent (UK source), People, HuffPo on MSN, Palm Beach Post, Salon, and Mediaite, no one said anything about the cost of the party - how much or paid by whom.
Maybe there's a credible new source out there somewhere that gives the cost info, but if none of these sources that are almost entirely hostile to Trump give it, there is a very high chance that TEB/Duncanpup's claim came from deep within someone's colon.