Romney was for self-deportation by cutting off all access to government aid, employment, education, etc. And Romney did not support letting them back into the country after being deported. Contrast that with Trump who wants to expedite their return once they touch down outside the US.
In 2012, Donald Trump described Mitt Romney's approach as "mean-spirited".
Ted Cruz said something similar.
“The amendment that I introduced removed the path to citizenship, but it did not change the underlying work permit from the Gang of Eight,” he said during a recent visit to El Paso. Mr. Cruz also noted that he had not called for deportation or, as Mitt Romney famously advocated, self-deportation.
Mr. Cruz said recent polling indicated that people outside Washington support some reform, including legal status without citizenship. He said he was against naturalization because it rewarded lawbreakers and was unfair to legal immigrants. It also perpetuates illegal crossings, he added.
Besides barring citizenship while instituting some level of legalization for those here already, Mr. Cruz has proposed increasing the number of green cards awarded annually, to 1.35 million from 675,000. He also wants to eliminate the per-country limit that he said left applicants from countries like Mexico, China and India hamstrung when they tried to gain legal entry to this country.