His name staying on the ballot Does Not Matter. All votes for him go to his replacement. Scroll up in the thread. There is text from the law that states this.
This seat CAN REMAIN SAFE if the GOP moves THIS WEEKEND to get a replacement announced and in place and then starts hitting the district hard to make sure conservative voters know there is a superior alternative to the Democrat.
This is not a year to dwell on an ugly situation when there is so much at risk. Instantaneous reaction to a casualty must take place. Get a replacement in place and do not lose this seat.