WASHINGTON >> The Trump administration today charged a Russian national in a sweeping plot to sow distrust in the American political process and imposed sanctions against a Russia-linked Ukrainian lawmaker accused of interfering in the U.S. presidential election.

Those actions, combined with a Microsoft announcement on hacking attempts targeting both the campaigns of President Donald Trump and Democratic challenger Joe Biden, underscore the extent to which the same cyber intrusions and foreign influence operations that defined the 2016 White House race remain a persistent concern today.

They also reflect a dichotomy in the administration. with officials taking aim at Russian interference in the political process even as Trump expresses doubt about Russian meddling. In the case of the sanctions, officials denounced audio recordings that had been released by the Ukrainian lawmaker and promoted by Trump on Twitter.

The criminal charges accuse Artem Mikhaylovich Lifshits of serving as a translation manager in a Russian effort that since at least 2014 has tried to disrupt the American political system and spread distrust about candidates. Members of the initiative, known as Project Lakhta, traveled to the United States to collect intelligence and operated bogus social media accounts that could pump out messaging to millions of Americans on divisive social issues.

The group operated through entities including the Internet Research Agency, the Russian troll farm charged by special counsel Robert Mueller with stirring up discord before the 2016 election. Its posts touched on topics including gun rights, immigration, the Confederate flag and race relations, according to a complaint charging Lifshits with using the stolen identities of Americans to open fake accounts at banks and digital currency exchanges.

“Project Lakhta members did not exclusively adopt one ideological viewpoint; rather, they wrote on topics from varied and sometimes opposing perspectives,” a Secret Service agent wrote in an affidavit supporting the complaint. “Project Lakhta members also developed strategies and guidance to target audiences with conservative and liberal viewpoints, as well as particular social groups.”

Lifshits was one of four people cited by the Treasury Department, along with Andrii Derkach, a Ukrainian lawmaker described by the U.S. government as “an active Russian agent” for a decade. Officials say he has interfered in the 2020 election by releasing edited audio recordings designed to denigrate Biden.

The Treasury Department action is the second time in as many months that the administration has called out Derkach by name. U.S. intelligence officials said in a statement last month that Derkach’s disclosure of the recordings, which capture conversations between Biden and Ukraine’s then-president, were part of a broader Russian effort to disparage Biden before the Nov. 3 election.

The administration’s move was especially notable because the statement announcing it said Derkach’s recordings advance anti-Biden claims that rely on “false and unsubstantiated narratives.” Trump has promoted those recordings by retweeting posts that include or reference them.

“Derkach almost certainly targeted the U.S. voting populace, prominent U.S. persons, and members of the U.S. government, based on his reliance on U.S. platforms, English-language documents and videos, and pro-Russian lobbyists in the United States used to propagate his claims,” the Treasury Department said in designating Derkach and three other Russia-linked individuals under an executive order designed to target election interference.

Derkach is a graduate of a Russian spy academy who, the Treasury Department says, maintains close ties to Russian intelligence services.

“Andrii Derkach and other Russian agents employ manipulation and deceit to attempt to influence elections in the United States and elsewhere around the world,” Treasury Secretary Steven Mnuchin said in a statement. “The United States will continue to use all the tools at its disposal to counter these Russian disinformation campaigns and uphold the integrity of our election system.”

In May, Derkach released audio recordings of purported conversations between Biden, while vice president, and Ukraine’s former president, Petro Poroshenko. The release was intended to promote a baseless narrative that Biden had demanded the firing of Ukraine’s top prosecutor because the prosecutor was investigating a gas company in Ukraine where Biden’s son Hunter held a board seat.

Biden was representing the official position of the Obama administration and many Western allies in seeking the removal of the prosecutor who was perceived as soft on corruption.

The other three people who were sanctioned are connected to the IRA.

Also today, Microsoft said that the same Russian military intelligence outfit that hacked the Democrats in 2016 has attempted similar intrusions into the computer systems of more than 200 organizations, including political parties and consultants. Most of the infiltration attempts by Russian, Chinese and Iranian agents were halted by Microsoft security software and the targets notified.

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Associated Press writer Mary Clare Jalonick contributed to this report.