Today's discussions:
WaPo's Phil Rucker, former US attorney Harry Litman, MSNBC analyst Elise Jordan, and Donny Deutsch on the subpoenas served to Trump's inaugural committee from the Southern District of New York;
WaPo columnist Eugene Robinson, NBC's Heidi Przybyla, MSNBC analyst Elise Jordan, and Donny Deutsch on cracks in support from Republicans as Trump floats the idea of declaring national emergency for his border wall;
Trump fact checker Daniel Dale of the Toronto Star on what lies Trump will most likely make during tonight's State of the Union address.