But emails among top transition officials, provided or described to The New York Times, suggest that Mr. Flynn was far from a rogue actor. In fact, the emails, coupled with interviews and court documents filed on Friday, showed that Mr. Flynn was in close touch with other senior members of the Trump transition team both before and after he spoke with the Russian ambassador, Sergey I. Kislyak, about American sanctions against Russia…

On Dec. 29, a transition adviser to Mr. Trump, K. T. McFarland, wrote in an email to a colleague that sanctions announced hours before by the Obama administration in retaliation for Russian election meddling were aimed at discrediting Mr. Trump’s victory. The sanctions could also make it much harder for Mr. Trump to ease tensions with Russia, “which has just thrown the U.S.A. election to him,” she wrote in the emails obtained by The Times.

It is not clear whether Ms. McFarland was saying she believed that the election had in fact been thrown. A White House lawyer said on Friday that she meant only that the Democrats were portraying it that way.