A New York Times investigation into Paul Manafort’s time consulting for Ukraine’s pro-Russia political party has revealed that the top adviser to GOP presidential nominee Donald Trump has ties to a large network that Ukrainian government investigators say was used to loot assets and influence elections. 

Manafort’s involvement in Russian and Ukrainian politics has previously been reported but has come under increasing scrutiny as the U.S. election cycle’s focus rests on the region.

The New York Times said its Sunday report “offers new details of how [Manafort] mixed politics and business out of public view and benefited from powerful interests now under scrutiny by the new government in Kiev.”

It created a stir on Twitter when former top Trump campaign manager Corey Lewandowski, who was fired after clashing with Manafort over campaign strategy, tweeted a link to the article minutes after it was posted.

Secret Ledger in Ukraine Lists Cash for Donald Trump’s Campaign Chief https://t.co/7bh7iIHHaY

— Corey Lewandowski (@CLewandowski_) August 15, 2016

Many jumped on board, retweeting the article and noting the awkwardness of the former Trump adviser seemingly calling out his successor.

If Corey recommends this story, it’s probably worth the read. https://t.co/9IlWtNDJWl

— Brian Fallon (@brianefallon) August 15, 2016

Stay tuned for more recommendations from Corey’s summer reading list. https://t.co/jsVXFa9WTH

— Brian Fallon (@brianefallon) August 15, 2016

Doesnt really feel like Lewandowski and Manafort parted on the best of terms. https://t.co/B4C5X6yktu

— Jennifer Palmieri (@jmpalmieri) August 15, 2016

former Trump campaign manager openly knifing his successor -> https://t.co/VYlssfDg4f

— Alex Altman (@aaltman82) August 15, 2016

After leaving the Trump campaign, Lewandowski got a job doing commentary on CNN.

“ok so now even the WSJ is being a bitch at least we still have corey at CNN to do damage contr…”@hunterwalk https://t.co/4B2RgCSdew

— darth™ (@darth) August 15, 2016

The media lies. Unless, of course, it reports something you like. pic.twitter.com/TiduRZIEox

— Hunter Schwarz (@hunterschwarz) August 15, 2016

Fairly remarkable tweet-retweet combo from the one and only Corey Lewandowski. cc: @nytimes pic.twitter.com/526yKMk9jh

— Matt Pearce (@mattdpearce) August 15, 2016

when you can’t wait to tweet it https://t.co/dw4SIGFNl1

— Kate Bennett (@KateBennett_DC) August 15, 2016

This is cold-blooded. pic.twitter.com/UFsAvgo5nf

— Philip Bump (@pbump) August 15, 2016

Piece on Manafort in Times is very interesting – more fascinating, tweeted out moments after posting by Lewandowski https://t.co/JJFvxSUkNe

— John Santucci (@JTSantucci) August 15, 2016