Mueller team questioning RNC staffers on 2016 digital operation: report

Special counsel Robert Mueller's team has started the process of questioning various Republican National Committee (RNC) staffers about the party's digital apparatus that worked with the Trump campaign during the 2016 presidential campaign, Yahoo News reported Wednesday.

Mueller's team is reportedly looking into the joint effort from the party and the campaign to reach out to voters in key swing states.

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Sources told the news organization that Mueller is seeking to determine whether the effort was related to efforts from Russian trolls and bots to influence American voters.

The special counsel's office declined to comment.

The report comes as Mueller's probe moves closer to the White House.

Mueller has questioned President TrumpDonald TrumpMajority of Americans in new poll say it would be bad for the country if Trump ran in 2024 ,800 bottle of whiskey given to Pompeo by Japan is missing Liz Cheney says her father is 'deeply troubled' about the state of the Republican Party MORE's former chief of staff Reince PriebusReinhold (Reince) Richard PriebusWisconsin GOP quietly prepares Ron Johnson backup plans Ex-Sen. Cory Gardner joins lobbying firm Democrats claim vindication, GOP cries witch hunt as McGahn finally testifies MORE, as well as former press secretary Sean SpicerSean Michael SpicerDeSantis to hold Newsmax town hall Biden's poor TV ratings against Trump is exactly what this administration wants Overnight Health Care: CDC director calls on Michigan to 'close things down' amid surge in cases | Regeneron says antibody therapy prevents COVID-19 infections MORE and current communications director Hope HicksHope HicksUPDATED: McEnany, Fox News talks on pause Trump selects Hicks, Bondi, Grenell and other allies for positions Trump lawyer Jenna Ellis tests positive for coronavirus MORE.

Mueller announced charges against former Trump campaign chairman Paul ManafortPaul John ManafortLobbyist Tony Podesta returns to work for Huawei Former bank CEO convicted of bribery in scheme to land Trump admin job Trial begins for Chicago banker who exchanged loans with Manafort for Trump job MORE and his business associate Richard Gates in October.

Trump's ousted national security adviser Michael Flynn pleaded guilty to lying to the FBI about his foreign contacts earlier this month and is said to be cooperating with Mueller's investigation.

- This story was updated at 1 p.m.