Lawmakers on Tuesday overwhelmingly voted in favor of a motion supporting NATO, as President Trump continues to criticize the alliance ahead of his summit in Europe.

The nonbinding motion, which came as the Senate voted to reconcile its version of the annual defense policy bill with that of the House, expresses the Senate’s support for NATO and calls on negotiators to reaffirm the U.S. commitment to it.

The 97-2 vote in the Senate comes as Trump heads to Brussels. He will also travel to the United Kingdom and meet one-on-one with Russian President Vladimir Putin in Helsinki during his trip.

GOP Sens. Rand Paul (Ky.) and Mike Lee (Utah) voted against the measure.

Democratic Sen. Jack Reed (R.I.) proposed the measure, calling the U.S. support for NATO "ironclad."

“Germany, as far as I’m concerned, is captive to Russia because it’s getting so much of its energy from Russia,” Trump told NATO Secretary General Jens Stoltenberg, in a fiery on-camera exchange that was nearly without precedent in the history of the post-World War II alliance.

“We have to talk about the billions and billions of dollars that’s being paid to the country we’re supposed to be protecting you against,” Trump said, referring to European purchases of Russian natural gas.