The politician from Indiana that does matter is the one who sits on the Immigration subcommittee in the House and that's Congressman Hostettler. Like most Americans he's against the guest worker program because he sees it for what it is, a way to undercut wages and displace legal citizens from their jobs.
...And Congressman Mike Pence (who has a solid Conservative Credentials on Immigration, as well as fiscal/federal budgets, social issues, constitutional isses, military issues, you name it..) I will agree with you that Hostettler is a gem though..and coincidently I have met him twice ;)!