investigation, abby phillip at the white house now. the spotlight firmly on the trump campaign this morning. how are the white house and lawmakers responding? >> reporter: good morning. this case is continuing to expand this week as yet another trump campaign associate is charged by the special counsel, robert mueller, for a slew of charges. and these charges and the plea deal associated with it suggests that the special counsel is zeroing in on paul manafort, the former trump campaign chairman, who has also been charged with a number of -- of allegations from the mueller team. and the special counsel seems to be wanting to push his to cooperate with them. rick gates, a longtime associate of paul manafort, a business sort, has agreed -- business associate, has agreed to cooperate with the investigation, crucially providing documentation and responsibly testimony that could help them in their case. clearly the mueller team wants paul manafort to see that the pressure is on him, encouraging