What Went Down At The Fourth Democratic Debate

Sunday night’s Democratic debate in South Carolina was certainly a vigorous one between Hillary Clinton, Bernie Sanders and Martin O’Malley, but was there a clear winner? It didn’t seem so to me or the FiveThirtyEight staff. As we do with every debate, our live blog team graded the candidates’ performances on an A to F scale, based on how well each improved (or hurt) their chances of winning the nomination. The result: Clinton and Sanders both averaged a B+, while O’Malley was well back with a C.

CANDIDATE	AVERAGE GRADE	HIGH GRADE	LOW GRADE
Hillary Clinton	B+	A	B
Bernie Sanders	B+	A	B-
Martin O’Malley	C	C+	C

Clinton and Sanders seemed to be playing to their respective bases, and they did so, in large part, successfully. Clinton made numerous appeals to black Democrats. She opened up the debate mentioning Martin Luther King Jr. (the debate was held on MLK Day weekend) and positioned herself as the defender and champion of President Obama’s legacy. Clinton notched a 57-percentage-point lead among black Democrats according to the latest YouGov poll, and Clinton wants to keep it that way. (She also probably knows that 93 percent of all definite Democratic caucus-goers in Iowa have a favorable view of Obama, according to the latest Des Moines Register poll). Sanders, on the other hand, didn’t stray far from the economic populism that got him here, working inequality into every answer he could. It’s a message that has earned him a 32-percentage-point lead among Democrats under 45 years old in Iowa, according to the Register poll. Sanders’ theme also plays well with independent voters who are sick of the status quo and favored him by 41 percentage points in the same poll. Nothing in tonight’s debate is likely to change any of these numbers much, and it didn’t seem like the candidates were that interested in changing them. Sanders knows his message has narrowed Clinton’s massive leads in both Iowa and New Hampshire, and he’s perhaps hoping that winning those states will reset the race. Clinton is hoping she can hold on in Iowa thanks to Obama’s popularity in the state, and, if all else fails in New Hampshire, can count on black support in South Carolina, where African-Americans made up 55 percent of the Democratic electorate in the 2008 primary.