You have someone to testify on your behalf, but you know zilch about what is going on or anything about it - why would you testify then?

https://www.yahoo.com/news/trump-own-witness-fraud-trial-174001911.html
Trump’s Own Witness in Fraud Trial Admits He Knows Nothing About Finances

One of Donald Trump’s expert witnesses in the New York business fraud trial admitted Friday that he is not, in fact, an expert.

Steven Laposa first took the stand Thursday to discuss the valuation of Trump’s real estate holdings. The New York attorney general has accused Trump and his allies of fraudulently inflating the value of their real estate assets to get more favorable terms on bank loans.

Laposa said the attorney general’s approach to valuation was “flawed” because it relied on a market value analysis of Trump’s properties. He argued it should have been based on the investment value, which takes into account the owner’s investment requirements.


When Laposa returned to the stand Friday, a lawyer for the attorney general’s office asked him if he had any experience reviewing personal financial statements. Laposa said no.

The lawyer, Louis Solomon, then asked if Laposa is or has ever been a certified appraiser. Again, Laposa said no.

Solomon cited Laposa’s initial deposition from July, in which he said that when “disparate valuations exist, it is prudent and common practice to examine the underlying assumptions.” Laposa admitted he had not done so with Trump’s valuations.

Laposa also revealed he had never seen the financial statements for Trump’s property at 40 Wall Street, which might make it difficult to value the property accurately. (On the stand Thursday, Laposa said that 40 Wall Street in Manhattan was also undervalued.)

You have someone to testify on your behalf, but you know zilch about what is going on or anything about it - why would you testify then?
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