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DES MOINES, Iowa (AP) — In Iowa's leadoff presidential caucuses, longshot Democratic candidate Martin O'Malley could finally be a player. That's probably not because of any hidden depths of support for the low-polling former Maryland governor. Rather, the quirks of the Iowa process mean that candidates must have a minimum level of support in each of the state's nearly 1,700 voting precincts. If O'Malley backers can't reach the threshold, they will have to select another candidate. That second-choice support may matter to Hillary Clinton and Bernie Sanders if their contest is at tight on Feb. 1 as polls now suggest. O'Malley has campaigned aggressively in Iowa. He has some well-regarded activists and paid staffers. But he has failed to catch on with most Democrats.

In tight Democratic race, O'Malley's Iowa support matters