Over all, naturalization applications increased by 11 percent in the 2015 fiscal year over the year before, and jumped 14 percent during the six months ending in January, according to federal figures. The pace is picking up by the week, advocates say, and they estimate applications could approach one million in 2016, about 200,000 more than the average in recent years.
While naturalizations generally rise during presidential election years, Mr. Trump provided an extra boost this year. He began his campaign in Junedescribing Mexicans as drug-traffickers and rapists. His pledge to build a border wall and make Mexico pay for it has been a regular applause line. He has vowed to create a deportation force to expel the estimated 11 million immigrants here illegally, evoking mass roundups of the 1950s.
Among 8.8 million legal residents eligible to naturalize, about 2.7 million are Mexicans, the largest national group, federal figures show. But after decades of low naturalization rates, only 36 percent of eligible Mexicans have become citizens, while 68 percent of all other immigrants have done so, according to the Pew Research Center.
“A lot of people are opening their eyes because of all the negative stuff Donald Trump has brought,” said Ms. Villegas’s husband, Miguel Garfío, 30, who was born and raised in Colorado and came to the workshop here to help his wife and other family members become citizens. His parents came from Mexico in the 1980s and worked hard all their lives, he said, helping him create a construction company in Denver that now employs 18 people. Contrary to Mr. Trump’s depiction, he said, none of his relatives have criminal records.