It was a historic scene: In a Manhattan courtroom Monday, former president Donald Trump took the stand in a civil trial that threatens his real estate empire. We break down the case, one of many court battles facing Trump as he runs for president again. Read more:It has been more than a century since a former U.S. president has testified, under oath, as a defendant in a court trial. That all changed on Monday, when former president Donald Trump took the witness stand in a civil trial brought by the New York attorney general’s office. It is accusing Trump and others, including his two adult sons, of committing rampant fraud. The case comes on top of other lawsuits Trump faces, which include four criminal indictments — two in federal court, one in New York and one in Georgia.Today on “Post Reports,” we hear what the scene was like inside the New York City courthouse from reporter Shayna Jacobs, who covers courts and criminal justice for The Post.