Pollster John Zogby:

"President Obama's self-declared successor and maintainer of the Obama Legacy took it on the chin in Michigan this past week. Hillary Rodham Clinton seems to be doing her best in all the states that Democrats will not win in November. A major factor in Sen. Bernie Sanders' surprise win was his strong position against President Clinton's and President Obama's negotiated trade deals.

"Nonetheless, what does Mr. Obama have to worry about? His opposition is eating its young and old and the president's approval ratings are the highest since he was re-elected in 2012. He and his family displayed elegance at a state dinner featuring the equally elegant Prime Minister of Canada Justin Trudeau.

Grade B+