To get in touch, check out this site: https://www.usa.gov/elected-officials
Also of use are: http://www.senate.gov/reference/common/faq/How_to_contact_senators.htm and http://www.house.gov/representatives/find/
Here you'll be able to navigate yourself to the proper individual's page. There is much talk these days about getting Senators to do their jobs. In this fractious democracy, we must do our jobs as well. Good luck.
Of course, if you really want to startle them ... write an old fashioned, hand written letter!
For related posts, see: http://jsbrookspresents.blogspot.com/2016/01/refusing-to-remain-silent-in-face-of.html, http://jsbrookspresents.blogspot.com/2015/12/skewering-title-and-pomp.html and http://jsbrookspresents.blogspot.com/2015/12/10-steps-to-stress-reduction.html