Sen. Bob Menendez, D-N.J., said he almost vomited after reading Russian president Vladimir Putin's op-ed in the New York Times, which was published late Wednesday evening

"I got an e-mail with what president Putin had to say — and I have to be honest with you — at dinner and I almost wanted to vomit," Menendez said, during an interview with CNN's Jake Tapper. "The reality is, I worry when someone who came up to the KGB tells us what is in our national interests an what is not."

Menendez cautioned, however, that it was not time to end diplomatic discussions with the Russians, particularly since Secretary of State John Kerry was traveling to Geneva to meet with his Russian counterpart, Sergei Lavrov.

"[I]t would be foolish to slam the door on a potential diplomacy," he said. "We have to test it."