"Since I make it a point to back up my arguments here you go..."
Nice try. What you actually do is toss out a bunch of rhetoric and ignore your own "arguments". To refresh your memory, your argument was that "Senators voted based on the desires of THEIR contributors." You made that point to counter my statement that Senators enjoy high favorability ratings from their constituents. Since I actually do backup MY statements with FACTS, here you go.... Approval Ratings of All 100 Senators
Based on their personal approval ratings, it would appear a vast majority of Senators vote based on the concerns of their constituents.
Your logical fallacy is over-generalization. General approval ratings do not translate into approval or disapproval of specific policies. As I demonstrated the American public wants less immigration (legal and illegal) and has held this opinion for some time. And I wouldn't be proud to quote an organization that has as its claim to fame that "50 TV News Organizations Count on SurveyUSA." Survey methodology matters. The quick look I did at their track record shows their results to be variable (i.e. some outside of expected accuracy +/-).