Reverberations from the terror attack in Paris continued this week as dozens of arrests have been made, and Europe remains on heightened alert. Plus, nuclear talks with Iran continue, and President Obama is threatening to veto legislation imposing more sanctions on Iran saying they would derail progress. The Supreme Court will decide the constitutionality of same-sex marriage. Republicans are meeting in California this week, while several have already started making moves towards a 2016 White House campaign. And in our Friday Focus, John Harwood of CNBC previews President Obama's State of the Union address.