Democratic presidential candidate and former U.S. Secretary of State Hillary Clinton is looking to win big in the 12 Democratic primaries and caucuses on what is called Super Tuesday, especially in the largest of those states, Texas, where she has long-established ties. But her rival, Vermont Senator Bernie Sanders, is bolstered by a network of mostly youthful supporters operating a grassroots campaign. VOA's Greg Flakus has more from Houston.
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