Transcript for Manafort's former business partner testifies against him

us here on a very busy day T. And weegin with that major of Paul manafort. An tonight, rtmueller's star witness, Rick tg thegainst F tmp campaign chair Paul mart.gates,manafo's nowch thing agns forme boss. Toy,er oath, H engage in criminal activyh Paul manafort? His answer in that court ." And that's not all he said. Sen whi H correspondent Cecilia Vega leading us off tonight Reporter: He was a background right there be the candidate at rational coenbut today, Rick Gates took the stand in a Virginia federal those plan the roof special counsebert Mueller's arness. Comingace-to-face with his former business partner, Paul manafort, greats -- gate ied that they committed crtogeth, including not repog more THA a dozen ants. E prosecutor asking, "Were Y involved in any cral activity with Mr. Fort?" "Yes," Gates answered."dmit any cres with Mr. Manart?" Es," gatesnsd again. The two men spent years working side-by-side. In February, Gates pleaded GU to conspicy and L toederal autties. Butos a flippewitness G with the special unescourt he lied because manafort told him to. And he also admitted he his former boss.chge manafors lawyers ve long maintained. Onhis fifth Y of tri, the stakes couldn't be higher for thpresident'foer campaign can. Precmanafort he falsified tax returns and Ed to report tens of milars he earned while working for a ukrainialitical pay S to Russia. Acunn three cotries, using the cash to "Bankroll his esm luxury real eatique rugs. But what this case is not about? Collusioor Russi interference in the election. Ecutors samanafort, who headed not guilty, committed his crimes well before he joid team trump. All R, get right to Cecilia ga us live from outside the courthouse. And we knoat Rick Gates cooperatinwith thepeci counsel case. But he is also key to oth matters the speciounsel is investigating? Repor hig ranking cagn aid to cooperate with Robert mur. He a older of the president's inaugution. He today to test against old friend, Paul fort, with all his insider knowledge will no do key source of infoation in robertmueller' ssia investion. He is B on the stand right here againtomorrow

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