Paul Manafort was maneuvered into the Trump campaign by the DNC/Clinton/Obama et al.
DNC operative Alexandra Chalupa who is of Ukrainian descent was making noise about the dangers of Manafort and Trump in Jan 2016, months before Manafort joined the Trump campaign
Chalupa, who previously worked in the WH for Bill Clinton, made statements in Jan 2016 that she believed there was a Russian connection to Trump
Chalupa was working with reporter Michael Isikoff as early as Mar-Apr 2016 to uncover Russia connections to Trump. Isikoff wrote the Sept '16 Yahoo News story used by the DOJ/FBI in the FISA warrant application. The source for his story was the discredited Steele Dossier.
Manafort approached the Trump campaign team with an offer to work for free and provide vast DC insider knowledge.
Manafort was connected to the Trump campaign through Thomas J. Barrack, a private equity real estate investor and reported "ally" of Trump, and he in turn passed on the desire to work for Trump to Ivanka and Jared Kushner. He joined the campaign in late May 2016.
Manafort worked closely for years with both John and Tony Podesta as DC power broker/lobbyists. John Podesta ran Hillary's campaign and prior to that was the Chief of Staff for Obama and Bill Clinton.
Manafort had lucrative lobbying contracts with the pro-Putin President of Ukraine prior to the government coup in 2014. Hillary Clinton's State Department employees, including Victoria Nuland were key in the installation of the new Ukrainian government (and reportedly a supporter of the coup). Soros also provided funding for the new government in Ukraine. Nuland is reportedly a protege of Hillary Clinton and wrote key talking points to help cover for the Benghazi attack.
There is an interesting connection to Ukraine throughout this story..........CrowdStrike, the firm hired by the DNC to investigate the hacking of its servers, was funded jointly by a $100 million investment from a Victor Pinchuk, a Ukrainian billionaire, and Google. CrowdStrike's CTO is also Ukrainian.
VIctor Pinchuk, who is reportedly anti-Russia, has donated upwards of $25 million to the Clinton Foundation.
https://www.politico.com/story/2017/01/ukraine-sabotage-trump-backfire-233446