US President Donald Trump had pressed Russian Federation to provide answers but did not suggest that Moscow had a hand in the attempted murder.
British Prime Minister Theresa May said on Wednesday that the Russian state was culpable for the attempted murder of Sergei Skripal, a former double agent who betrayed dozens of spies of Britain's MI6 foreign intelligence service, and his daughter.
They said Russia's failure to respond to Britain's "legitimate request" for an explanation "further underlines its responsibility".
The president's assessment, which occurred shortly after his administration announced new sanctions against Russian entities for interference in the 2016 election, comes after the administration initially hedged on blaming Russia for the attack.
Ex-FBI deputy director fired days before retirement
McCabe had, at one point been on President Donald Trump's list of possible Comey replacements. "Of course, I disagreed with him". The president began attacking McCabe by name on Twitter last summer and exhorted Sessions to get rid of him.
British Prime Minister Theresa May yesterday expelled 23 diplomats and suspended high-level contacts with Russian Federation, including for the World Cup, saying her government found Moscow "culpable" of a nerve agent attack on a former spy.
France on Thursday agreed with Britain that Russian Federation was behind the nerve agent attack, President Emmanuel Macron's office said in a statement, adding a united European and transatlantic response was needed.
President Donald Trump has consistently refused to punish Russian Federation for its attacks on the United States and around the world - but that changed somewhat today.
"I condemn in the strongest possible terms this unacceptable attack", Macron told reporters during a visit to central France. U.S. Ambassador to the United Nations.
Britain holds Russia responsible, saying that the nerve agent novichok was developed by the Russian military.
"We are extremely concerned by what happened a few days ago on British territory, we view with great concern all information we are receiving about the use of chemical weapons on British territory", Ms Zakharova told the briefing.