The President is responsible for implementing and enforcing the laws written by Congress. He appoints the heads of the federal agencies, including the Cabinet, to help meet that responsibility.
what is executive
how hard is it for the members of the executive so hard to get a job there
You can find an Executive Assistant Job at Simply Hired. They have many Executive Assistant Job listings all over the United States, and you can apply for the job right on their website.
judicial branch
enforce laws
to kill people
a boring job...
They enforce the laws.
There are many job search sites that are devoted to helping those who are looking for executive jobs. These sites include The Ladders, ExecuNet and 6FigureJobs. In order to find an executive job, I would visit those sites.
a chief executive writes the opinion for each case if he/she is in the majority.
Executive Branch
to pass the laws