Dude! It ain't rocket science. The contractor was a dumb ass. Materials, as you said are hard to manage, wind load pushes newly set sections over makes them lean before concrete in bottom of post holes can set. It's kind of basic to the task. I know that fence contractors will not set privacy fence in a 30 -37 mph around here, because it does not work. It guarantees they will have to go back out and redo the job or not get paid by Lowes. Small fence contractor are smarter than that, The contractor doing the border fence is apparently unfamiliar with wind load, probably just glad to get a government contract, more afraid of falling behind than doing a good job. I'm glad the administration hires "only the best people."
Dude have you ever worked any type of construction?
Wind can come up at a moments notice. Worked on many projects. Have seen engineers tell companies things that have no bearing in real life. So an engineer could have claimed it was fine. No way to tell from the article since it is very short on any facts.
If you really think that Trump was personally responsible for hiring that contractor you need a serious mental evaluation. But it is fun to pretend that any failure is his fault right?
Worked a lot of jobsites, while in outside sales for a wholesaler. Actually took a job after retirement as a department specialist for Lowes. Sold installed fencing among other things installed exterior and interior. If it is windy, the fencing contractor rescheduled and you called the customer. They would not start a job if the ground was soaked either. Picture I saw of the fence in question looked like 16 - 20 foot with the bottom, steel tubing, top 5 feet or so solid, taking complete wind load only at elevation furthest from the ground.
Contractor Error. I don't actually think Trump personally awarded the contract, and frankly do not care. Contractor was a dumb ass. If you live in So Cal, maybe you can hire him for your fencing job, after he finishes the nice government contract. Good luck.