Federico Peña

Rubio faces pressure from all sides over his views on immigration

GOP candidate Marco Rubio

Immigration politics has long offered great promise but also threatened great peril for Republican presidential hopeful Marco Rubio.

The heated fight over what to do about people in the country illegally poses a dilemma for the son of Cuban immigrants: How far can Rubio go in appealing to the party’s core of conservative white voters before he undercuts his potential to win the general election?

The Florida senator vowed this month to terminate the Obama administration program that offers a reprieve from deportation to thousands of immigrants brought to the U.S. illegally as children. He has played down his leading role in pushing for a bill to offer a path to citizenship to...