ATLANTA (AP) — Newt Gingrich has charged into the fray over illegal immigration, risking conservative ire just as his Republican presidential campaign has vaulted into front-runner status.The firebrand former House speaker broke with the Republican hard line on immigration, calling for "humane" treatment for otherwise law-abiding illegal immigrants who have been in the United States for decades and have established deep family and community ties.Gingrich suggested they should be provided a pathway to legal residency but not citizenship. He said Republicans should see illegal immigrants through the prism of another issue near and dear to the GOP faithful: family values.Some conservatives asserted that Gingrich has wounded his candidacy, perhaps fatally.But others praised Gingrich for emerging as a "voice of reason" on an emotionally charged topic.