Here is a possible summary:
The transcript is from a segment of Last Week Tonight with John Oliver, where he talks about the status of Trump's border wall. He criticizes the wall as a racist, ineffective, and expensive project that has caused environmental and cultural damage. He also exposes the corruption and incompetence of some of the contractors and fundraisers involved in the wall construction, such as Fisher Sand and Gravel and We Build The Wall. He argues that the wall is a monument to Trump's legacy of destruction and stupidity. He ends the segment by saying "I told you so" and showing clips of his previous episode on the wall.
Here are some possible facts extracted from the text:
1. Trump's border wall was the key promise of his first campaign.
2. Trump organized a wall pageant to test eight prototypes of concrete walls in the desert.
3. The wall design they ended up going with was a wall of slats, or bollards, topped by a metal, anti-climbing plate.
4. Of the 194 miles of border barrier that have been built during Trump's presidency, only five miles are in locations where no barriers at all previously existed.
5. Trump declared a national emergency at the Southern border, so that he could tap into Pentagon accounts for the rest of the wall funding.
6. Fisher Sand and Gravel is a company with a checkered past that partnered with a shady non-profit called We Build The Wall, whose backers are now under indictment for skimming money for their own uses.
7. The wall is causing significant problems, such as disrupting animals migratory patterns, slicing up people's land, and plowing through Native American communities.
8. Experts have said that some sections of the wall are at risk of falling into the Rio Grande due to erosion and flooding.