Mitt Romney has seized further advantage on economic issues at the core of the 2012 campaign, taking him to 50 percent support among likely voters vs. 47 percent for Barack Obama – Romney’s highest vote-preference result of the contest to date.

The difference between the two candidates is within the margin of sampling error in the latest ABC News/Washington Post daily tracking poll, and their individual support levels have not significantly changed. But the momentum on underlying issues and attributes is Romney’s.

Romney’s gains are clear especially in results on the economy. This poll, produced for ABC by Langer Research Associates, finds that likely voters now pick Romney over Obama in trust to handle the economy by 52-43 percent – the first time either candidate has held a clear lead over the other on this central issue.

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