The labor market's overheating and the Fed will have to raise 4 times in 2018

Stocks are weak out of the gate again, with the tech-heavy Nasdaq down the most. In addition to the tax bill making its way through Congress, we just got the ADP numbers this morning showing private companies added added 190,000 jobs in November. Moody's Mark Zandi warning the job market will be overheated next year. Yahoo Finance's Alexis Christoforous and Jared Blikre discuss.