Simplify the following text for a Grade 10 native English-speaking person.
Original: Winston Smith works as a clerk in the Records Department of the Ministry of Truth , where his job is to rewrite historical documents so they match the constantly changing current party line .
Simplified: In the book , Winston is a clerk for the Ministry of Truth , where his job is to rewrite historical documents so that they match the current party line , which changes on a daily basis .