The Malignant Loser is infamous for stiffing charities, and using them as tax dodges. He was forced by a court to shut down his Trump Foundation scam because he used it as a personal piggy bank. It's not surprising that things haven't changed.
Near the end of a New York Times article about Iowa Republican politics is a story about the Malignant Loser's reneging on a commitment he made to Sen. Joni Ernst for her event that benefits veterans. It tells you everything about him:
"Last month, Mr. Trump skipped the signature 'Roast and Ride' event organized by Senator Joni Ernst of Iowa. His campaign had expressed interest in sending videotaped remarks, and Ms. Ernst’s operation then rented large screens for the purpose of showing them, but he never sent a video — leaving Ms. Ernst’s team without a recording, and the cost of the equipment to cover, according to five people briefed on the incident.
Ms. Ernst’s team had planned on using the chance to win a motorcycle helmet signed by all of the Republican candidates as a lure to sell tickets to the 'Roast and Ride.' They sent the helmet to Mr. Trump, who returned it later than expected and had added the numbers '45' and '47,' signaling he would be the 47th president, the role everyone else is also running for, according to two people with knowledge of the episode. They never used the helmet." (our emphasis)
The Malignant Loser, who used bone spurs as a bogus excuse for evading the draft, has a history of coming up short on commitments to charitable veterans groups. He's despicably referred to vets as "suckers" and "losers" while visiting military cemeteries, so it's not surprising that he blew off the Iowa event and left Republicans there holding the bill.
(DoD Photo by U.S. Army Sgt. James K. McCann)