Former U.S. Secretary of State Hillary Clinton <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2015%2F10%2F22%2Fpolitics%2Fhillary-clinton-benghazi-hearing-updates%2Findex.html" target="_blank">testifies before the House Benghazi Committee</a> on Thursday, October 22. Clinton mounted a passionate defense of her response to the attack, which claimed the lives of four Americans in 2012. But she came under repeated criticism from Republicans who tried to prove she ignored pleas from U.S. diplomats for better security.
Former U.S. Secretary of State Hillary Clinton testifies before the House Benghazi Committee on Thursday, October 22. Clinton mounted a passionate defense of her response to the attack, which claimed the lives of four Americans in 2012. But she came under repeated criticism from Republicans who tried to prove she ignored pleas from U.S. diplomats for better security.
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U.S. Rep. Paul Ryan walks to his office after a news conference on Capitol Hill on Tuesday, October 20. The Wisconsin Republican <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2015%2F10%2F21%2Fpolitics%2Fpaul-ryan-house-speaker-freedom-caucus%2F" target="_blank">is pushing ahead</a> with his bid to be the next House speaker.
U.S. Rep. Paul Ryan walks to his office after a news conference on Capitol Hill on Tuesday, October 20. The Wisconsin Republican is pushing ahead with his bid to be the next House speaker.
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A U.S. Marine stands at attention as Air Force One prepares to depart Andrews Air Force Base in Maryland on Wednesday, October 21.
A U.S. Marine stands at attention as Air Force One prepares to depart Andrews Air Force Base in Maryland on Wednesday, October 21.
Jose Luis Magana/AP
Supporters of Republican presidential candidate Ben Carson stand in front his tour bus at a book signing in Edmond, Oklahoma, on Wednesday, October 21.
Supporters of Republican presidential candidate Ben Carson stand in front his tour bus at a book signing in Edmond, Oklahoma, on Wednesday, October 21.
Nick Oxford/Demotix/Corbis
U.S. Vice President Joe Biden turns to his wife, Jill, after announcing Wednesday, October 21, that he would not be running for President. <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2015%2F10%2F21%2Fpolitics%2Fjoe-biden-not-running-2016-election%2F" target="_blank">The announcement</a> took place at the White House Rose Garden with President Barack Obama.
U.S. Vice President Joe Biden turns to his wife, Jill, after announcing Wednesday, October 21, that he would not be running for President. The announcement took place at the White House Rose Garden with President Barack Obama.
Jacquelyn Martin/AP
Hillary Clinton is reflected on a teleprompter during a campaign rally in Alexandria, Virginia, on Friday, October 23.
Hillary Clinton is reflected on a teleprompter during a campaign rally in Alexandria, Virginia, on Friday, October 23.
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Former U.S. Sen. Jim Webb waits in a side room Tuesday, October 20, before announcing <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2015%2F10%2F20%2Fpolitics%2Fjim-webb-2016-election-drops-out%2F" target="_blank">that he would no longer seek the Democratic Party's nomination</a> for President. He told reporters in Washington that he would consider an independent bid.
Former U.S. Sen. Jim Webb waits in a side room Tuesday, October 20, before announcing that he would no longer seek the Democratic Party's nomination for President. He told reporters in Washington that he would consider an independent bid.
Andrew Harnik/AP
Republican presidential candidate Donald Trump speaks during <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2015%2F10%2F21%2Fpolitics%2Fdonald-trump-iowa-rally%2F" target="_blank">a campaign rally</a> in Burlington, Iowa, on Wednesday, October 21.
Republican presidential candidate Donald Trump speaks during a campaign rally in Burlington, Iowa, on Wednesday, October 21.
SCOTT MORGAN/Reuters/Landov
U.S. Sen. Bernie Sanders, who is seeking the Democratic Party's nomination for President, <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2015%2F10%2F22%2Fpolitics%2Fbernie-sanders-larry-david-impression%2F" target="_blank">appears on Jimmy Kimmel's late-night show</a> in Brooklyn, New York, on Wednesday, October 21.
U.S. Sen. Bernie Sanders, who is seeking the Democratic Party's nomination for President, appears on Jimmy Kimmel's late-night show in Brooklyn, New York, on Wednesday, October 21.
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Democratic presidential candidate Martin O'Malley rolls up his sleeves Wednesday, October 21, as he arrives to host an event at the Microsoft Innovation & Policy Center in Washington.
Democratic presidential candidate Martin O'Malley rolls up his sleeves Wednesday, October 21, as he arrives to host an event at the Microsoft Innovation & Policy Center in Washington.
Andrew Harnik/AP
President Barack Obama holds a pen as he <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2015%2F10%2F22%2Fpolitics%2Fobama-defense-bill-veto%2Findex.html" target="_blank">vetoes a defense-spending bill</a> on Thursday, October 22. Obama said the $612 billion National Defense Authorization Act used monetary tricks to circumvent mandatory spending caps that both Democrats and Republicans want to see eliminated.
President Barack Obama holds a pen as he vetoes a defense-spending bill on Thursday, October 22. Obama said the $612 billion National Defense Authorization Act used monetary tricks to circumvent mandatory spending caps that both Democrats and Republicans want to see eliminated.
BRENDAN SMIALOWSKI/AFP/Getty Images
Republican presidential candidate Jeb Bush speaks at a forum in North Las Vegas, Nevada, on Wednesday, October 21.
Republican presidential candidate Jeb Bush speaks at a forum in North Las Vegas, Nevada, on Wednesday, October 21.
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U.S. Secretary of State John Kerry poses with a guitar that was given to him by Spanish Foreign Minister Jose Manuel Garcia-Margallo during a meeting in Madrid on Sunday, October 18.
U.S. Secretary of State John Kerry poses with a guitar that was given to him by Spanish Foreign Minister Jose Manuel Garcia-Margallo during a meeting in Madrid on Sunday, October 18.
Ballesteros/Reuters/Landov
Former Rhode Island Gov. Lincoln Chafee <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2015%2F10%2F23%2Fpolitics%2Flincoln-chafee-2016-election-dnc-meeting%2F" target="_blank">ends his bid for President</a> while speaking at the Democratic Party's annual Women's Leadership Forum on Friday, October 23.
Former Rhode Island Gov. Lincoln Chafee ends his bid for President while speaking at the Democratic Party's annual Women's Leadership Forum on Friday, October 23.
Drew Angerer/Bloomberg/Getty Images
Republican presidential candidate Rick Santorum poses with a veteran during a forum in Plano, Texas, on Sunday, October 18.
Republican presidential candidate Rick Santorum poses with a veteran during a forum in Plano, Texas, on Sunday, October 18.
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President Obama shares a laugh with Agatha Sofia Alvarez-Bareiro, a high-school senior from New York, as he prepares to look at the moon during White House Astronomy Night on Monday, October 19. The event brought together students, teachers, astronomers, engineers, scientists and space enthusiasts for an evening of stargazing.
President Obama shares a laugh with Agatha Sofia Alvarez-Bareiro, a high-school senior from New York, as he prepares to look at the moon during White House Astronomy Night on Monday, October 19. The event brought together students, teachers, astronomers, engineers, scientists and space enthusiasts for an evening of stargazing.
Susan Walsh/AP