A supporter waves a Cuban flag in front of the country's embassy after it reopened for the first time in 54 years on July 20 in Washington, D.C. The embassy was closed in 1961 when U.S. President Dwight Eisenhower severed diplomatic ties with the island nation after Fidel Castro took power in a communist revolution. Mark Wilson/Getty Images hide caption

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In a campaign video, Rand Paul uses a chainsaw to shred 1,700 pages of what he says represents the federal tax code. Paul is offering a flat-tax plan that fits on one page. Rand Paul campaign video hide caption

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Sen. Lindsey Graham, R-S.C., speaks to members of the media after visiting the memorial site at the Emanuel African Methodist Episcopal Church in Charleston, S.C., where nine people were killed. John Taggart/EPA/Landov hide caption

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Former Florida Gov. Jeb Bush poses with supporters for photos during a fundraiser in May. Alan Diaz/AP hide caption

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Sen. Ted Cruz, R-Texas, apologized Wednesday after making a joke about Joe Biden while the vice president was mourning the death of his son. Charles Dharapak/Associated Press hide caption

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Wisconsin Gov. Scott Walker offers cheese and ice cream to guests in his hospitality room at the Iowa Lincoln Day Dinner in Des Moines on Saturday. Charlie Neibergall/AP hide caption

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Republican presidential hopeful Sen. Ted Cruz speaks at the Republican Leadership Summit Saturday in Nashua, N.H. Jim Cole/AP hide caption

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