During a news conference on Sunday, Texas Health Presbyterian Hospital Chief Clinical Officer Dr. Daniel Varga answers questions about a health care worker who now has Ebola after providing care for Thomas Eric Duncan. Varga is expected to testify before a House panel looking into Ebola response. Brandon Wade/AP hide caption

itoggle caption Brandon Wade/AP

Ebola is the latest issue to spill into debates this season. Colorado Sen. Mark Udall (left) has blamed Republicans for cutting government health resources. His opponent, Rep. Cory Gardner, says the CDC has been spending wastefully. Brennan Linsley/AP hide caption

itoggle caption Brennan Linsley/AP

Clay Aiken hugs a supporter during an election night watch party May 6 in Holly Springs, N.C. Aiken went on to win the primary by fewer than 400 votes. Gerry Broome/AP hide caption

itoggle caption Gerry Broome/AP

Sen. Mary Landrieu greets candidates Rep. Bill Cassidy (left) and Rob Maness after Tuesday's debate. Most observers don't see how Landrieu can pull enough support to avoid a runoff in the state's open primary. Gerald Herbert/AP hide caption

itoggle caption Gerald Herbert/AP

Wendy Rogers was one of the Air Force's first 100 female pilots. Now she's part of the biggest class of female veterans running for Congress. Courtesy Wendy Rogers Campaign hide caption

itoggle caption Courtesy Wendy Rogers Campaign

Florida Libertarian gubernatorial candidate Adrian Wyllie told the Miami Herald, "I'm a middle-class guy. I face the same problems that Floridians are facing. I'm not living in an ivory castle like Rick Scott and Charlie Crist." Brendan Farrington/AP hide caption

itoggle caption Brendan Farrington/AP

North Carolina Libertarian Senate candidate Sean Haugh (center), Sen. Kay Hagan and Republican candidate Thom Tillis attend a debate on Oct. 9. Haugh's tie features a cartoon cat. He says his mom gave it to him. Gerry Broome/AP hide caption

itoggle caption Gerry Broome/AP