The Trump administration plans to respond by Sept. 1 to Russia after it ordered 755 diplomatic mission staff to leave the country.

Secretary of State Rex Tillerson Rex Wayne TillersonGary Cohn: 'I haven't made up my mind' on vote for president in November Kushner says 'Alice in Wonderland' describes Trump presidency: Woodward book Conspicuous by their absence from the Republican Convention MORE said Monday the U.S. plans to respond at the beginning of next month, noting he plans to ask "clarifying questions" about Moscow's actions," according to the Associated Press.

Putin last month ordered 755 diplomatic mission staff to leave the country.

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The diplomats must leave by Sept 1.

Putin said he was capping the number of American personnel at 455, the same number of Russian diplomatic and technical staff in the United States.

The expulsion came in response to legislation overwhelmingly passed by Congress that would increase sanctions against Russia.

President Trump last week signed the legislation, which also limits the president's ability to lift sanctions on Russia.

Trump later put blame on Congress for the U.S.-Russia relationship. He tweeted the U.S. relationship with Russia is at a "very dangerous low."

"You can thank Congress, the same people that can't even give us HCare!" he tweeted.