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Senator Alexander is latest Republican to face primary challenge

Senator Cruz may have to wait eight months to stop being Canadian

U.S. Senator Cruz releases birth certificate amid talk of presidential run

Senator Cruz releases birth certificate amid talk of presidential run

Appellate court blocks Pennsylvania voter ID law for November 5 election

Republicans may boycott CNN, NBC presidential debates

Michigan Republican David Camp says will not run for Senate

Republicans may boycott presidential debates over Clinton programs

Republicans to vote on debate boycott because of Clinton programs

U.S. political writer Jack Germond dies at age 85

Rouhani defends cabinet choices in Iran parliament debate

Rouhani defends cabinet choices as Iran parliament starts debate

Iran, U.S. waiting for other side to make nuclear compromise

Entry of Republican congressman promises hot Senate race in Arkansas

Republicans threaten boycott of debates over Clinton programs

Iran, U.S. signal will to engage as new president sworn in

New Iranian President Rouhani calls for dialogue and respect

Iranian President Rouhani takes oath of office before parliament

First woman South Carolina military school graduate to challenge senator

Rouhani becomes new Iranian president

New Jersey Governor Christie nudged by gun rights group in key primary state

Same-state U.S. presidential contenders could vex donors