Trump trial nears final phase with key witness: confidant-turned-nemesis Michael Cohen

With the prosecution in Donald Trump's criminal trial hinting it might rest its case within days, it's about to call upon Michael Cohen — the man who went from being the former U.S. president's closest consigliere to his arch adversary.

Trump trial nears final phase with key witness: confidant-turned-nemesis Michael Cohen
Michael Cohen, left, stands next to Donald Trump in this photo from September 2016. Cohen is expected to testify at Trump's criminal trial on Monday.

With the prosecution in Donald Trump's criminal trial hinting it might rest its case within days, it's about to call upon Michael Cohen — the man who went from being the former U.S. president's closest consigliere to his arch adversary.