Nikki Haley

WASHINGTON — Americans should resist “the siren call of the angriest voices” in how the nation treats immigrants, South Carolina Gov. Nikki Haley said Tuesday as the GOP used its response to President Barack Obama’s State of the Union address to try softening the tough stance embraced by some of its leading presidential candidates.

The U.S.-born daughter of Indian immigrants, Haley said the country is facing its most dangerous security threat since the terrorist attacks of Sept. 11, 2001. That was a reference to the Islamic State group, which has taken credit for attacks in Paris and elsewhere and may have inspired last month’s mass shooting in San Bernardino, California.

“During anxious times, it can be tempting to follow the siren call of the angriest voices,” Haley, mentioned by some as a potential vice presidential candidate this year, said in her party’s formal response to Obama. “We must resist that temptation.”

Speaking from the governor’s residence for nine minutes, Haley did not mention the GOP presidential race. But the front-runner so far, Donald Trump, has called for deporting millions of immigrants in the U.S. illegally. Two other contenders, Sens. Marco Rubio, R-Fla., and Ted Cruz, R-Texas, have battled over which of them has the tougher record on the issue.

“Growing up in the rural South, my family didn’t look like our neighbors,” Haley said. She said no one who works hard and follows the laws “should ever feel unwelcome in this country.”

Haley said the U.S. should continue admitting “properly vetted legal immigrants, regardless of their race or religion” — an apparent reference to calls by Trump to temporarily bar Muslims from entering the country. She also hewed closely to GOP demands in the immigration debate, saying: “That does not mean we just flat out open our borders,” and said the U.S. should refuse entry to refugees “whose intentions cannot be determined.”