Article snippet: New court filings assert that a business associate of former Trump campaign chairman presidential campaign when the three were in contact. Perhaps most strikingly - Gates allegedly knew of those ties. The sentencing memorandum does not say that the alleged connections to someone with ties to Russian intelligence include any links to the Trump campaign. The allegations are included in a federal court filing on Tuesday night from Special Counsel crime from the special counsel’s team. The firm later agreed to cooperate in the Mueller probe. Van der Zwaan and his law firm had worked on a controversial 2012 report on the political rival to the then Russia-allied Ukrainian President, himself a longtime client of Manafort, Gates, and "Person A" referenced in the court documents. Gates - with van der Zwaan - allegedly worked on talking points around the 2012 report and they also continued, allegedly, to work together into 2016, according to the court filing. Both Manafort and Gates were indicted in October on multiple felony counts including conspiracy, money laundering, and false statements, much of it stemming from their work on behalf of pro-Russian interests in Ukraine. Manafort pleaded not guilty to all charges, and Gates recently pleaded guilty to reduced charges in exchange for his cooperation in the Mueller probe. Attorneys for Gates and van der Zwaan did not respond to requests for comment from ABC News, and Manafort and his legal team are under ... Link to the full article to read more