A.M. Links: Hillary vs. Bernie, Cruz Says Trump Is 'Losing It,' U.N. Panel Rules on Julian Assange

• Hillary Clinton and Bernie Sanders will face off tonight at a Democratic presidential debate in New Hampshire.

• Donald Trump is now claiming that Ted Cruz "stole" the Iowa caucus. Cruz says that Trump is "losing it."

• Paul Ryan to conservatives: "The Left would love nothing more, they would love nothing more than for a fragmented conservative movement to stand in a circular firing squad and fire so that progressives can win by default."

• January 2016 gun sales set a new national record.

• "WikiLeaks founder Julian Assange's three-and-a-half-year stay in the Ecuadorian embassy in London amounts to 'unlawful detention', a United Nations panel examining his appeal will rule on Friday."

• Black Lives Matter leader DeRay Mckesson is running for mayor of Baltimore.

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