WASHINGTON (AP) -- Mitt Romney got two important wins in the Arizona and Michigan primaries, but he better pick up the pace if he wants to lock up the Republican nomination for president before the party's national convention in late August.
Voters in 11 states have gone to the polls and Romney has won six of them. Perhaps even more important, Romney has won 51 percent of the delegates at stake in those contests.
But at that pace, the former Massachusetts governor won't ever win enough delegates in the primaries and caucuses to clinch the nomination. He would need help from members of the Republican National Committee who automatically attend the convention and can support any candidate they choose.
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