Article snippet: The battle for the Democratic nomination is nearing crunch time with roughly one month left before the Iowa caucuses. Some big-name candidates have dropped out — most notably Sen. MORE has joined the field. Who has the best chance of winning the nomination? 1. Former Vice President MORE (July ranking: 2) Biden has led national polls since he launched his campaign in April. His advantage has eroded since then, but it is still significant. The former vice president is roughly 10 points ahead of his nearest challenger, Sen. MORE (I-Vt.), in the polling averages of both RealClearPolitics (RCP) and data site FiveThirtyEight. Biden’s support has proved more resilient than many observers predicted, despite halting debate performances, attacks from rivals and smears from MORE. There are at least three pillars buttressing Biden’s candidacy. First and most important, he is way ahead of his rivals in terms of black support. Second, polls from battleground states have helped him make the case that he is the best person to take on Trump. And third, Biden’s long career and centrist ideology appear to have a comforting appeal to voters who are tired of the never-ending dramas of the Trump era. Biden has serious challenges too. He is trailing in polls in both Iowa and New Hampshire. If he finishes off the pace in both states, what will happen to his argument about electability? It’s also plausible that part of Biden’s appeal lies in name recognition — and that this advanta... Link to the full article to read more