apparently … I confess that I find this a little bit hard to understand. Why have they decided that it’s worth pursuing now? But fine. He’s a crook, go after the crimes: The Manhattan district attorney’s office on Monday will begin presenting evidence to a grand jury about Donald J. Trump’s role in paying hush money to a porn star during his 2016 presidential campaign, laying the groundwork for potential criminal charges against the former president in the coming months, according to people with knowledge of the matter. The grand jury was recently impaneled, and witness testimony will soon begin, a clear signal that the district attorney, Alvin L. Bragg, is nearing a decision about whether to charge Mr. Trump. On Monday, one of the witnesses was seen with his lawyer entering the building in Lower Manhattan where the grand jury is sitting. The witness, David Pecker, is the former publisher of The National Enquirer, the tabloid that helped broker the deal with the porn star, Stormy Daniels. As prosecutors prepare to reconstruct the events surrounding the payment for grand jurors, they have sought to interview several witnesses, including the tabloid’s former editor, Dylan Howard, and two employees at Mr. Trump’s company, the people said. Mr. Howard and the Trump Organization employees, Jeffrey McConney and Deborah Tarasoff, have not yet testified before the grand jury. The prosecutors have also begun contacting officials from Mr. Trump’s 2016 campaign, one of the people said. And in a sign that they want to corroborate…