他们管辖范围，特别是其中有一个subcommittee专管immigration. 察看了议员投票纪录，发现两个committee chairman and subcommitte chair 在前段的非法移民法案上都投了赞同票。
links to voting record and senator contact:
http://www.senate.gov/legislative/LIS/roll_call_lists/roll_call_vote_cfm.cfm?congress=110&session=1&vote=00235
http://judiciary.senate.gov/members.cfm