Whether it is a violation of due process for the government to bolster the testimony of cooperating witnesses

QUESTION PRESENTED Whether it is a violation of due process for the government to bolster the testimony of cooperating witnesses by introducing the ‘truth-telling’ aspects of their cooperation agreements during direct examination, before their credibility had been questioned, and for the government to improperly vouch for its witnesses by suggesting that it knows the ‘truth,’ and by linking its credibility to that of its witnesses. 2