Trump didn’t simply predict without evidence he would be arrested on Tuesday, he knew very well he was not going to be arrested on Tuesday.
At the time of making the statement he had already asked DA Bragg to allow Robert Castello to give testimony to the Grand Jury, Bragg had agreed.
Trump knew this he knew this would delay the Grand Jury ruling, he was again lying through his teeth.
Oh, and Castello’s testimony didn’t go as he expected, he’s been bleating about it since.