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NEW YORK — Sen. Tim Kaine received his first classified intelligence briefing as the Democratic vice presidential nominee in New York on Thursday, according to a senior U.S. intelligence official and two sources in the Clinton campaign, who all agreed to discuss the briefing on the condition of anonymity.

Democratic Vice Presidential candidate, Sen. Tim Kaine, D-Va. speaks during a rally at the J Douglas Galyon Depot in Greensboro, N.C., Wednesday, Aug. 3, 2016. Chuck Burton / AP

Republican VP contender Gov. Mike Pence of Indiana will receive a similar briefing Friday, according to the same intelligence official and a Trump campaign source who also spoke on condition of anonymity. He will receive his briefing in Indianapolis, sources said.

Former Secretary of State Hillary Clinton has already had one since becoming the Democratic presidential nominee, and Republican nominee Donald Trump has had two.

This will likely be Kaine’s only briefing like this before the election, according to a senior U.S. intelligence official speaking to NBC News on condition of anonymity.

Kaine is already currently a member of both the Senate Armed Services and Senate Foreign Relations Committees.

Earlier Thursday, U.S. officials cast doubt on Donald Trump’s claim at the NBC News Commander-In-Chief Forum Wednesday night that he was able to read “body language” of officials at one of his recent briefings.

Multiple sources with knowledge of that briefing told NBC News that Gen. Michael Flynn, one of Trump’s advisors present, repeatedly interrupted the briefing until Gov. Chris Christie intervened.