Former president Donald Trump and his company bid $1 billion in 2014 in an attempt to purchase the Buffalo Bills football team.

The only problem was that Trump needed a bank to help finance his bid.

Former Deutsche Bank executive Nicholas Haigh testified that when Trump turned to his bank for help, bank executives declined, fearing it would increase their financial exposure to Trump.

"Deutsche Bank was not willing to increase its credit exposure to Donald Trump at that time," Haigh said.

But the bank was still willing to help Trump by sending a letter to support his bid, according to Haigh -- on the condition that Trump Organization controller Jeffrey McConney certify that the company was still in compliance with the covenants of the three outstanding loans the bank had given Trump.

McConney verified that Trump had over $300 million in liquid assets in 2014, and that it suffered no material decrease in the value of his illiquid assets, according to a document entered into evidence today.

With that verification, Deutsche Bank issued a letter that Trump had the "financial wherewithal" to fund his bid.

Trump's effort to purchase the Bills was ultimately unsuccessful.

When Donald Trump negotiated a $125 million loan from Deutsche Bank related to his Trump National Doral golf club, the former president agreed to maintain a minimum net worth of $2.5 billion as a condition of the loan, former bank executive Nicholas Haigh testified.

The loan memorandum prepared by Deutsche Bank included a covenant that the "Guarantor shall maintain a minimum net worth of $2.5 billion excluding any value related to the Guarantor's brand value," according to a document marked as evidence today.

The New York attorney general alleges that Trump's actual net worth at the time of the loan agreement was only $1.5 billion, an amount that would have triggered a default.

Retired Deutsche Bank executive Nicholas Haigh testified that he was involved in the decision to set the $2.5 billion figure, which he believed would protect the bank from exposure if the property failed or the broader market declined.

"It was set in order to make sure the bank was fully protected under adverse market conditions," Haigh testified.

To calculate Trump's net worth, Deutsche Bank looked at what Haigh described as Trump's four "trophy properties," all in Manhattan: Trump Tower, 40 Wall Street, Trump Park Avenue, and Niketown -- a ground lease for a property adjoining Trump Tower.

Since the properties themselves were not provided as collateral for the loan, Deutsche Bank did not commission independent appraisals for the properties, and instead used a modified version of Trump's own numbers.

"The bank normally only commissions appraisals on assets taken as collateral," Haigh said.

Deutsche Bank adjusted their assessment in 2012, when they learned of a separate appraisal of Trump Tower that offered a lower value of the property than what Trump had provided.

"The bank felt that it had an independent view on the value of the asset," Haigh said of the appraisal that prompted his bank to lower their value for Trump Tower from $1.2 billion to $992 million.

Deutsche Bank relied on the strength of Donald Trump's "financial profile" when deciding to loan the former president roughly $125 million related to the purchase of the Trump National Doral golf club in 2011, according to retired Deutsche Bank executive Nicholas Haigh.

Haigh testified that because Trump used the golf course and spa as collateral -- relatively "unusual" assets that Deutsche Bank would struggle to sell in the event of a foreclosure -- the bank leaned on the strength of Trump's larger portfolio.

"[Trump] is guaranteeing he will repay our loan -- all the money due on the loan," Haigh said about the terms of the loan. "He is also guaranteeing if the result is losing money, he will pay the cost of that shortfall."

Haigh said that he personally reviewed Trump's statement of financial condition when determining whether to sign off on the loan.

"My conclusion was the client owned a lot of real estate, which was not surprising," Haigh said about his findings after reading Trump's financial statement.

Previous witnesses in the trial have offered insights into how Trump's annual financial statement was drafted, finalized, and provided to banks to fulfill loan obligations. Haigh is the first witness to testify from the perspective of the banks, which considered the statements when deciding whether to do business with Trump.

Responding to lingering questions about the lack of a jury at the ongoing civil trial, Judge Engoron stated on the record that Trump would not have been entitled to a jury trial.

"We are having a non-jury trial because we are hearing a non-jury case," Engoron said, dispelling claims that the trial lacks a jury because Trump's lawyers simply forgot to check off a box or file a motion.

"It would have not helped to make a motion. Nobody forgot to check off a box," Engoron said.

During her opening statement, Trump's lawyer Alina Habba said the former president would have preferred a jury trial, and Trump himself has made multiple posts on his Truth Social platform about the alleged injustice stemming from the lack of a jury.

"The AG checked off non-jury, and there was no motion for a jury," Engoron said about the process in Trump's case -- but he added that if a motion for a jury trial had been filed, he would have rejected it because the attorney general asked for "equitable" relief, which does not entitle participants to a jury trial.

"I would like to say thank you, your honor," Habba said about the clarification.

Judge Engoron has denied a motion from the New York attorney general to preclude four expert witnesses from testifying for the defense when the defense presents it case starting on Monday.

The state had sought to preclude the four experts' testimony on the grounds that, following the testimony of the state's witnesses, the four defense witnesses were no longer relevant to the case.

"You've won the battle. We'll see if you win the war," Engoron told defense attorney Chris Kise -- though he warned Kise that he would cut off the witnesses if they try to debate facts already established in the case.

In making his ruling, Engoron reiterated his finding from his earlier summary judgment order that Donald Trump made at least ten internally contradictory claims in his statements of financial condition.

"You can't have a correct statement with these kinds of errors," Engoron said.

Kise told the court that Donald Trump Jr. will be the first witness to testify in the defense's case on Monday.

"Oh, I know him," Engoron deadpanned after the announcement.

It will mark Trump Jr.'s return to the witness box after the state put him on the stand last week.