U.S. stock futures down as Nasdaq 100, Dow Jones, and S&P 500 fall following previous gains. Critical peace talks encounter intense strain.

He also said the U.S. may take over the strait, adding "I'll blow the s--t out of them. If they don't make a deal, we'll collect tolls."

He also said the U.S. may take over the strait, adding "I'll blow the s--t out of them. If they don't make a deal, we'll collect tolls."