Illegal immigration is flash point for Republican White House hopefuls

By Philip Rucker and and Amy Gardner, Thursday, September 1, 6:12 PM

KEENE, N.H. — Mitt Romney opened his town hall meeting here talking about the economy — his thoughts on growing business, getting government out of the way — just as he does nearly every other campaign event. But when he opened last week’s forum for questions, the first voter he called on didn’t seem concerned about any of that. He wanted to know the Republican presidential candidate’s stance on border security.

A similar scene played out in South Carolina a few days later, when Rep. Michele Bachmann (R-Minn.) attended a town hall meeting she assumed would center on the economy, jobs and the federal deficit — only to see the assembled voters react most passionately to her comments on illegal immigration.

Polls may not suggest it, and the candidates may not be catering to it, but immigration is an issue that voters won’t let the GOP White House hopefuls escape.

Republican primary voters keep bringing immigration up as the candidates campaign in back yards, opera houses and recreation halls across Iowa, New Hampshire and South Carolina. To a sizable chunk of those who will pick the GOP’s presidential nominee, immigration is an urgent issue, even a litmus test.

“Immigration is not even close to the top issue for most Republicans today, but it is an issue that is heavy with symbolic importance to Republican voters,â€