Donald Trump lawyers representing the ex-president in his first criminal trial maintain that former Trump lawyer and star witness Michael Cohen’s testimony can’t possibly be credible due to the fact that he was convicted in 2018 of lying about hush money payments to adult film star Stormy Daniels. Politico noted last week that “while the prosecution’s ability to prove its case at trial could hinge on Cohen’s first-hand account of the hush money arrangement, Cohen also may be its most problematic witness due to long-running questions about his ability to tell the truth.” However, Albany Law Sch…