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Brit Hume joined Bret Baier tonight to react to major new developments in Special Counsel Robert Mueller's Russia investigation.

George Papadopoulos, a former foreign policy adviser to the Trump campaign, recently pleaded guilty to making false statements to the FBI.

Papadopoulos was charged with willfully and knowingly making false statements to FBI agents regarding “the timing, extent and nature of his relationships and interactions with certain foreign nationals whom he understood to have close connections with senior Russian government officials,” according to court documents.

Additionally, Paul Manafort, former Trump campaign chairman, and his associate Rick Gates were indicted by a federal grand jury on Monday on 12 charges, including conspiracy against the United States and conspiracy to launder money.

"It's not a good day when your former campaign chairman ... is indicted on federal charges," Hume said, noting that the "good news" for President Donald Trump and his team is that there's no indication that these charges have anything to do with the Trump campaign.

He said the Papadopoulos matter is more serious, because the charges he pleaded guilty to involve what he did while he served as an adviser to the Trump campaign.

He added, however, that Papadopoulos' attempts to establish communication between the Trump campaign and Russian officials appear to have been unsuccessful. He said more details may emerge, but this doesn't seem to be the "bombshell" many were hoping for.

"Considering obviously the expectations of many in Washington, particularly those who were hoping that something would happen that would be devastating to the White House, that may yet come, but this wasn't it," Hume said.

Watch more above.

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