CNN said on Monday that the network has severed ties with the Democratic strategist Donna Brazile, after hacked emails showed that she shared questions for CNN-sponsored candidate events with friends on Hillary Clinton’s campaign.

Ms. Brazile, a veteran political analyst for the network, had temporarily left CNN in July when she became interim chairwoman of the Democratic National Committee. CNN said that it accepted her formal resignation on Oct. 14.

“We are completely uncomfortable with what we have learned about her interactions with the Clinton campaign while she was a CNN contributor,” said Lauren Pratapas, a network spokeswoman.
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In a statement, Ms. Pratapas wrote that CNN “never gave Brazile access to any questions, prep material, attendee list, background information or meetings in advance of a town hall or debate.”

The network’s announcement came shortly after a new batch of hacked emails, released by WikiLeaks on Monday, revealed a note from Ms. Brazile sent on March 5 — a day before a CNN-sponsored debate