Former Apple (AAPL) - Get Report CEO John Sculley does not think iPhone manufacturing within the U.S. is practical at this time. 

"The only practical way to make iPhone's, or other products like that in the U.S., is you've got to be able to manage the supply chain effectively," Sculley told the FOX Business Network's Stuart Varney. "Many of these components are being made in Mexico. So we've got to figure out how to get the components in the supply chain to the U.S. so they can be assembled and that requires a lot of these border tax issues."

The former Apple head from 1983-1993 also believes increased immigration and border control is a "central issue" for the tech industry. 

"Almost 70% of the leadership of Silicon Valley... is people who come from some other part of the world who have come to Silicon Valley because they have unique talents," he said. "We need the H-1B visas... Immigration is very, very fundamental to America's innovation, it's a big issue in Silicon Valley."

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