Features of the bipartisan plan range from more drones along the Rio Grande to a path to citizenship for some 11 million people in the country illegally. But the fight is all about the details.
Sen. Marco Rubio, a favorite of the tea party, is key to the ultimate success of new immigration reform legislation. His presidential prospects could rise or fall with the bill.
An activist for Mexican migrants wonders if the proposal would encourage more to illegally go to the US, setting back a revival in rural Mexico.
A bipartisan plan on immigration reform by a group of senators reflects tough terms for forgiving most illegal immigrants. President Obama, too, must adopt only an amnesty that strongly contributes to rule of law.
US Chamber of Commerce President Tom Donohue says he's optimistic that immigration reform can be passed this year and is working with a broad array of partners to make that happen.