WikiLeaks founder Julian Assange defended Jared Kushner's attempt to create a secret backchannel between President Trump's campaign and Moscow.

"Kushner correct to create channels with everyone. CIA has no authority over leadership and is financially motivated to increase conflict," Assange tweeted Sunday.

Trump's son-in-law reportedly spoke with the Russian ambassador to the U.S., Sergey Kislyak, in December about setting up a secret communications channel at Russian diplomatic facilities where U.S. intelligence officials would be unable to pick up the private discussions.

On at least three occasions during or after the presidential campaign, Kushner failed to disclose his communication with Kislyak.

Kushner's attorney said the White House adviser has "no recollection" of the reported calls with Kislyak.

WikiLeaks published thousands of emails during the presidential campaign that were hacked from the Democratic National Committee and Clinton's campaign chairman John Podesta.

Russia is believed to be behind the hacks, though WikiLeaks has maintained that it did not receive the documents from the Russians.