
US President Donald Trump said he's proposed building a "solar wall" on the Mexican border that would pay for itself by generating electricity.
"We're thinking of something that's unique, we're talking about the southern border. Lots of sun, lots of heat," Trump said at a campaign rally in Cedar Rapids, Iowa. "We're thinking about building the wall as a solar wall, so it creates energy, and pays for itself. And this way Mexico will have to pay much less money, and that's good. Is that good?”
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