Circuits are applying different tests to gauge prejudice resulting from testimony that improperly bolsters or vouches for the testimony of another witness.

The question presented here is: Whether this Court should adopt a test that vacates a conviction where there is a "reasonable probability" that improper bolstering or vouching testimony affected the outcome of the trial.

Whether this Court should adopt a test that vacates a conviction where there is a 'reasonable probability' that improper bolstering or vouching testimony affected the outcome of the trial