The hacking attempts mirror similar Russian attacks ahead of the 2016 election, which US intelligence officials have said were focused on helping to elect Republican Donald Trump to the presidency by hurting his Democratic opponent, Hillary Clinton.
Britain on Tuesday will call for the European Union to increase sanctions against Russian Federation, saying the bloc had to stand "shoulder to shoulder" with the United States, which hit Moscow with new economic curbs this month.
The new U.S.sanctions sparked a sell-off across Russian markets - something that could recur if the promised second wave of sanctions is carried out.
The Russian authorities deny allegations from Microsoft that hackers linked to Russia's government tried to target the websites of two right-wing United States think tanks, the Interfax news agency reported Tuesday.
Sen. Bob Corker, the Republican chair of the committee who's been critical of Trump, offered praise for the administration's policies, but said Trump's rhetoric has "undermined" those policies and helped "create additional disunity with the West".
Britain's foreign secretary is calling for traditional Western allies to join in a united front against Russia's "aggressive and malign behavior", expressing confidence that the United States under President Donald Trump will lead the way.
"What you see is an approach to foreign policy that is different to his predecessors but is absolutely focused on upholding the global order", Hunt said.
"Putin's thesis is that the American constitution is an experiment that will fail if it is challenged from the right way within", Mitchell told the Senate Foreign Relations Committee Tuesday. The Philippine President, Rodrigo Duterte, was also angered last week after he received a warning from the U.S. against buying submarines and other equipment from Moscow. "The (midterm US) elections have not happened yet, but there are already allegations". The administration's actions come at the president's direction, he added, and he said he had a list of times Trump voiced support for the intelligence community's assessment of Russia's 2016 interference, just as Secretary of State Mike Pompeo did during testimony last month. According to Mitchell, foreign direct investment in Russian Federation has fallen by 80 percent since 2013, "which is a pretty stunning number".
Russian Deputy Foreign Minister Sergei Ryabkov responded Tuesday in a statement on the ministry's website, saying the new USA sanctions were groundless, promising a response from Moscow.
Foreign Ministry official Zamir Kabulov was cited by Interfax on Monday as saying Moscow had invited the Taliban, which is banned in Russian Federation and considered a terrorist organisation.
But the officials faced questions from sceptical lawmakers about the administration's policy toward Russian Federation, particularly since Trump has sent conflicting messages about it.