The ongoing testimony of Michael Cohen, former lawyer to Donald Trump, is a double-edged sword for the former president’s defense in the charges brought by Manhattan’s Democratic district attorney. While Trump’s lawyer aims to damage Cohen’s credibility, the jury may question why Trump kept him around for so long. The prosecution has attempted to corroborate Cohen’s testimony but has only done so on non-incriminating elements. Conversely, the Trump Organization’s CFO, Allen Weisselberg, has not corroborated Cohen’s key story on Trump’s knowledge of the payments. The defense should focus on the legality of non-disclosure agreements and refrain from attacking the issue of Trump’s state of mind too aggressively.