GOP debate, Christie drop out, Hunter Biden contempt of Congress, avalanche, Bitcoin ETFs, Saban retirement, Rodgers off ESPN

Two of former President Donald Trump's strongest GOP presidential challengers took shots at each other during the final Republican debate before the Iowa caucuses. Two Republican-led House committees voted to advance a resolution to hold Hunter Biden in contempt of Congress. We'll tell you about a deadly avalanche at a popular ski resort in California. The federal government gave the green light to some companies offering bitcoin exchange-traded funds. Lastly, long-time University of Alabama football head coach Nick Saban is retiring.

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