The EU has pledged to buy $750 billion of energy from the U.S. in exchange for a lower rate tariff rate in its trade deal, but analysts say this is unrealistic.

"I think it's the biggest deal ever made," Trump said of the new agreement, which will reduce the bloc's tariff rate to 15 percent.

President Donald Trump and EU Commission President Ursula von der Leyen announced a trade deal framework setting a 15% baseline tariff on most EU goods, down from Trump's planned 20% tariff.