Copy Selected Checkbox Value From One Checkbox To Another Immediately Using JQUERY

I’m relatively new to Jquery and have been struggling with this problem for the last day or so. I am trying to do something seemingly simple, but I can’t quite work it out. I have two identical checkboxes with many entries and multiple choices can be selected by the end user in either checkbox. If a value in checkboxa is selected, I want it to immediately select the identical value in the checkboxb. I have researched many solutions, and I have tried the following: My HTML. I’m using Django template and forms with a queryset for the choices, which is