>> republicans sure to take don jr.'s lead and hammer cohen on credibility. here's what he said back in december. >> the man doesn't tell the truth. and it is sad that i should take responsibility for his dirty deeds. i will not be the villain of his story. >> a critical week on capitol hill for cohen. more now from pamela brown. >> reporter: good morning. this is certainly a high stakes week for president trump. not only because of the second summit with north korea in vietnam, but also because the former fixer and attorney michael cohen is meeting with three committees both privately and publicly. today he will meet with the senate intelligence committee behind closed doors, but this of course is public testimony in front of the house oversight committee that is garnering the most attention and anticipation. michael cohen is expected to talk about a breadth of issues