https://www.cnbc.com/2018/01/09/sen-dia ... imony.htmlat our company told investigators."
Fusion GPS did not immediately respond to CNBC's request for comment.
Simpson touches on a wide array of topics, including Trump's business ties, his tax history and his connection to real estate developer Felix Sater, who is reported to have links to Russian organized crime.
Here are some of the highlights:
Steele, Simpson testified, told him the FBI also had a source inside the Trump operation, although he wasn't sure whether that meant the presidential campaign or the Trump Organization. The bureau was more inclined to believe Steele's information, he said, "because they had other intelligence that indicated the same thing, and one of those pieces of intelligence was a human source from inside the Trump organization." NBC News' Ken Dilanian later tweeted that the supposed walk-in source "was a mischaracterization by Simpson of the Australian diplomat tip about Papadopoulis."
Simpson touched on how the Trump Organization handles paying taxes: "One of the things we found out was that, you know, when it comes to paying taxes, Donald Trump claims to not have much stuff. At least the Trump organization. So they would make filings with various state and local authorities saying that their buildings weren't worth much."
Simpson discussed Trump's relationship with Sater: "This was something he didn't want to talk about and testified under oath he wouldn't know Felix if he ran into him in the street. That was not true. He knew him well and, in fact, continued to associate with him long after he learned of Felix's organized crime ties. So, you know, that tells you something about somebody."
Fusion GPS attorney Joshua Levy claimed that someone died as a result of the dossier: "Somebody's already been killed as a result of the publication of this dossier and no harm should come to anybody related to this honest work."
Fusion GPS did not secure full access to Trump's tax returns, Simpson said: "They were Trump properties and I believe we may have reviewed some public information about estate taxes and things like that. We didn't have access to his tax returns."
Simpson said he only become aware of the infamous Trump Tower meeting between Donald Trump Jr. and a Russian lawyer when it was reported in the New York Times: "I was stunned."
Simpson had no "factual reason to believe" the Trump Tower meeting was a Russian attempt to make contact with the Trump campaign, but: "You know, as a sort of question of counterintelligence and just general investigation of Russian methods and that sort of thing, I think that's a reasonable interpretation."
Fusion GPS concluded that Trump "exaggerated" his properties' worth in legal filings — but that did not indicate or show connections to Russia: "Not that I recall."
Simpson said Trump's country clubs aren't making any money: "They were not profitable entities. I don't specifically recall. I just remember that these were not doing very well and that he'd sunk a lot of money into them and he hadn't gotten a lot of money back yet."
You can click on the link above that has the whole released testimony embedded in the article to read in full. It's a really long testimony.