There's no strong lobby against more high-skilled immigration. But as sometimes happens in US politics, the uncontroversial reform is held hostage to the contro

There's no strong lobby against more high-skilled immigration. But as sometimes happens in US politics, the uncontroversial reform is held hostage to the controversial one. In particular, lobbying groups for and against having an official status for the millions of currently undocumented Mexicans in the US have opposed any immigration bill that doesn't include what they want. Lawmaking does not allow cherry-picking bugfixes.