What is the rush on the immigration bill for?

Last week, the Senate rushed to pass its version of the Immigration Reform bill. As critics rightfully are pointing out, this bill repeats major weaknesses of the Immigration Reform and Control Act of 1986. It just added stronger language, proving one more time that politicians believe that magic spells solve problems. There is only a slim chance of finding a compromise with Congress, as most congressional representatives are even further from reality and common sense – they would like to expel all illegal immigrants and make it hard for them to return. Nevertheless, commentators say that legislators will try to pass a new immigration bill before the November election, as it might be an election issue. Let us make it an election issue, and let leave it to the voters to decide. What is the urgency in passing – what is likely – a new bad immigration law now, instead of waiting until after voters would have a chance to speak out?