The really big open question is how all of this will work. (theverge.com)
Deficit negotiations now underway could resolve one of the last big open questions on U.S. policy that weigh on the economy. (nreionline.com)
If we get tax reform, particularly corporate tax reform, and it's in conjunction with repatriation, the big open question is, If that money comes back, where does it go? (fortune.com)