Both Republicans and Democrats are getting set for nominating contests Tuesday, March 1 in 11 states, the biggest electoral day so far in the months-long campaign in the race for the White House.
ຜູ້ສະໝັກ ຫາສຽງ ກ່ອນການປ່ອນບັດ Super Tuesday

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Supporters look on as democratic presidential candidate former Secretary of State Hillary Clinton speaks during a "Get Out The Vote" event at the Old South Meeting Hall in Boston, Massachusetts, Feb. 29, 2016.

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Democratic presidential candidate former Secretary of State Hillary Clinton speaks during a "Get Out The Vote" event at the Old South Meeting Hall in Boston, Massachusetts, Feb. 29, 2016.

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Republican presidential candidate, Donald Trump waves to the crowd during a rally at Radford University in Radford, Virginia, Feb. 29, 2016.

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Guests listen to the national anthem during a campaign rally for Republican presidential candidate Donald Trump at the Madison City Schools Stadium in Madison, Alabama, Feb. 28, 2016.