Veterans Affairs Secretary Eric Shinseki pauses while speaking at a meeting of the National Coalition for Homeless Veterans on Friday.
Charles Dharapak/AP
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Mississippi Sen. Thad Cochran, who is seeking his seventh term, is in a heated primary race with a Tea Party-backed challenger. Supporters of his opponent are accused of conspiring to photograph Cochran's bedridden wife.
J. Scott Applewhite/AP
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Massachusetts Rep. John Tierney, shown with D.C. Del. Eleanor Holmes Norton during a June 2013 hearing, is a blue-state Democrat who could be in a tight re-election race.
J. Scott Applewhite/AP
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Eric Shinseki resigned as the head of the Department of Veterans Affairs on Friday, in what President Obama said was a decision spurred by a desire to not distract from efforts to fix the agency's problems. Earlier Friday, Shinseki spoke at a conference in Washington.
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Republican Sen. Bob Corker, the ranking member on the Senate Foreign Relations Committee, says he thinks President Obama hasn't responded strongly enough to the crises in Ukraine and Syria.
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