Burlington Community School District website censors contact senators list; creates an incomplete list

I was randomly browsing the BCSD's website and I noticed that on their website that there are only three senators listed as contacts.

Link to the webpage.  http://www.burlington.k12.ia.us/index.php?option=com_content&view=article&id=297&Itemid=252

There is no excuse as to why the others were left out.  If they were listed based on how close they are in town, that wouldn't be a case either.  Tom Harkin and Chuck Grassley are no where on the website, as well as the others in the other districts.

I know that one of the senators Dennis Cohoon had use to work at the Burlington High School.

Personal politics perhaps?