Trump has denied the affair happened and called the investigation by Bragg, a Democrat, a witch hunt. An additional witness is expected to appear before the grand jury on Monday, at the request of Trump's lawyers, a person familiar with the matter said on Saturday.6 minute readMarch 19, 20231:35 PM GMTLast Updated an hour ago Trump says he expects to be arrested on Tuesday, calls for protests By Luc Cohen and Karen Freifeld NEW YORK, March 18 (Reuters) - Former U.S. President Donald Trump on Saturday said he expects to be arrested on Tuesday as New York prosecutors consider charges over a hush money payment to a porn star, and called on his supporters to protest.