The Central Dynamics of the Republican Race Remain the Same; Only the Lead Has Changed (VIDEO)

Following-up from Sunday, "CBS News 2016 Battleground Tracker Poll: Donald Trump and Ben Carson Tied in Iowa (VIDEO)."

A great segment with Major Garrett, at CBS Evening News:



BONUS: At Hot Air, "Reuters national online tracking poll of likely GOP voters: Carson 33, Trump 26, Rubio 10, Cruz 8."