Four critical developments in the immigration reform battle weigh in favor of GOP support.
Republicans' embrace of immigration reform has been swift and has shaken the status quo on what was once thought to be an insoluble political dilemma.
A mix of liberals and conservatives may scuttle immigration reform if its proponents don't watch out.
Sen. Marco Rubio is right to warn against a rush to a vote on a bill no one has yet seen.
Immigration reform is popular in Americans, and among Republicans.
Sen. Rand Paul wouldn't bar illegal immigrants from citizenship, but he would require Congress to certify border security.
Republicans can't get around immigration reform simply by being friendly with voters.
The former governor tries to free himself from the tangle he created.