The delay has indicated that if elected as the next PM, the PM will be involved in a trial in which uncomfortable revelations will emerge, that the AG has 'politely' concealed. Instead of taking pride in his past and current achievements, we may be hanging our heads in shame, much like the Americans are enduring under Trump.

Mandelblit was determined that the indictments be made before the election but now he has potentially damaged Netanyahu election chances he suddenly decides he is going to delay things until after the election.
I hope that after the election Mandelblit looses his job because he has involved himself in election politics even if it was indirectly.