If there is any good news for former Maryland governor Martin O’Malley in the latest poll out of Iowa, it is this: More than eight out of 10 likely participants in the state's  2016 Democratic caucuses don't know enough about him to say whether they view him favorably.

That means that O'Malley, who has been weighing a possible presidential bid for at least the past two years, should have lots of opportunities to convince people of his merits when he travels to the early nominating state in March.

O'Malley made at least four trips to Iowa last year to speak on behalf of Democratic candidates or at Democratic Party events. But in the latest  Quinnipiac University poll, he remained the top choice of less than one percent of likely caucus-goers, a finding that underscores the steep climb ahead.

Hillary Rodham Clinton continues to dominate the 2016 Democratic field, with the support of 61 percent of likely caucus participants, the survey found. She is followed by Sen. Elizabeth Warren (D-Mass.) with 19 percent; Vice President Biden with seven percent; Sen. Bernie Sanders (I-Vt.) with five percent; and former senator Jim Webb (D-Va.) with two percent.

The outlook for O’Malley doesn’t improve markedly even if Clinton decides not to run. Under that scenario, O’Malley garners only two percent support, according to the poll. Warren and Biden are the biggest beneficiaries, drawing 36 percent and 32 percent, respectively. Sanders bumps up to 8 percent and Webb to 4 percent. Warren has said repeatedly that she does not plan to run for president.

O’Malley has said he intends to announce by spring whether he will move forward with a 2016 White House bid. He is scheduled to travel this weekend to South Carolina to speak at a Democratic Party event and has trips slated next month to New Hampshire and Iowa.

Despite heavy travel last year to those and other key states -- where he mostly campaigned on behalf of other Democrats -- O’Malley remains a largely unknown figure, the Quinnipiac poll shows. A full 84 percent of likely Iowa caucus participants say they haven’t heard enough about him to have a favorable or unfavorable opinion. Of those with an opinion, 12 percent view him favorably, while three percent view him unfavorably.

By contrast, Clinton is viewed favorably by 90 percent of those surveyed and unfavorably by seven percent. Only one percent say they don’t know enough to have an opinion.

The Quinnipiac poll is at least the fourth this year to show O’Malley as the choice of one percent or fewer of likely Iowa caucus goers.