As the Senate debates a massive overhaul of the nation's immigration laws, one of its newest members has emerged as a leading opponent of the bill's most controversial feature: a path to citizenship for millions living in the country unlawfully. The views of Texas Republican Ted Cruz have been significantly colored by the saga of his own father, an immigrant from Cuba. Peter Spiro, a legal expert on U.S. citizenship at Temple, says Cruz’ father followed "sort of a zigzag path to citizenship. Ted Cruz himself seems to be an advocate of those traditional immigration models," Spiro says. "Maybe he should be a little more tolerant of the nontraditional versions, given his own father's history."