Core Viewpoint - The U.S. Treasury Secretary, Janet Yellen, stated that it remains to be seen whether the tax legislation will increase the U.S. debt levels [1] Group 1 - The impact of the tax proposal on overall benefits is uncertain [1] - The X-Date, or the date when the U.S. will hit its debt ceiling, is a moving target [1] - It is anticipated that the X-Date will occur in mid to late summer, with predictions for July and August being imprecise [1]