President Donald Trump said last week that Apple Chief Executive Tim Cook promised him “three big, beautiful plants” will be built in the U.S., but when asked for specifics in Tuesday’s earnings call with analysts, Cook shifted the conversation to jobs instead.

“Let me just take this question from what are we doing to increase jobs, which I think is probably where it’s rooted,” Cook said, responding to a question about the plants from UBS analyst Steve Milunovich, according to a FactSet transcript.

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Cook then touted the 2 million jobs Apple says it has created in the U.S., three-quarters of which are in app development.

“We do view that we have a responsibility in the U.S. to increase economic activity, including increasing jobs, because Apple could have only been created here,” he said.

Cook noted that Apple AAPL, -3.17% has announced an initial $1 billion investment in an advanced manufacturing fund for the U.S., and that its first recipient is a Corning plant in Kentucky that will expand to make “innovative glass” for iPhones and iPads.

Eventually, Cook mentioned new manufacturing investment, possibly including new plants, albeit in vague terms.

“We think there’s more of these that we can do. I think there’s probably several plants that can benefit from having some investment to grow or expand or even maybe set up shop in the U.S. for the first time. So we’re very excited about that.”

Cook also stressed Apple’s impact on the U.S. economy.

“We have purchased, or we purchased last year, about $50 billion worth of goods and services from U.S.-based suppliers,” he said.

Read:Foxconn’s history of broken promises casts a shadow on news of Wisconsin plant

Separately, Trump suggested Cook told him things he might not be telling the media, according to a leaked transcript of a July 25 interview between the president and Wall Street Journal editor in chief Gerard Baker that Politico published Tuesday.

“We have Tim Cook I spoke to, and he’s promised me three big plants—big, big, big. I said, you know, Tim, unless…” Trump said, according to the report.

“Really? Where?” Baker asked.

“We’ll have to see,” Trump said. “You can call him. But I said, ‘Tim, unless you start building your plants in this country, I won’t consider my administration an economic success, OK?’ And he’s called me and he says, you know, they’re going forward, three big, beautiful plants. You’ll have to call him. I mean, maybe he won’t tell you what he tells me, but I believe he will do that. I really believe it.”