Trump trial arrives at a pivotal moment: Star witness Michael Cohen is poised to take the stand

NEW YORK (AP) — The star prosecution witness in Donald Trump's hush money trial is set to take the stand Monday with testimony that could help shape the outcome of the first criminal case against an American president.

Michael Cohen, Trump's former lawyer and personal fixer, is by far the Manhattan district attorney's most important witness in the case and his expected appearance signals that the trial is entering its final stretch. Prosecutors say they may wrap up their presentation of evidence by the end of the week.

Cohen is expected to testify about his role in arranging hush money payments on Trump's behalf during his first presidential campaign, including to porn actor Stormy Daniels, who told jurors last week that the $130,000 that she received in 2016 was meant to prevent her from going public about a sexual encounter she says she had with Trump in a hotel suite a decade earlier.

He also matters because the reimbursements he received form the basis of the charges — 34 felony counts of falsifying business records — against Trump. Prosecutors say the reimbursements were logged as legal expenses to conceal the payments' true purpose.