Joe Biden's path to the nomination

Data offer us some clues about Biden's prospects, but we really need new polls to know what comes next

Being a data-driven journalist is tough some times. Usually, I get stuck for two reasons. Often, it’s that I don’t have the data I need to answer a question. But sometimes the problem is that I have too much data to look at. Signals get crossed. Narratives conflict. Finding my way out of the data cave proves time-intensive.

There are also times when, pa…