WASHINGTON, DC - SEPTEMBER 07: Rep. Frederica Wilson (D-FL) and Democratic National Committee Chair Rep. Debbie Wasserman Schultz (D-FL) (L) join fellow Democratic members of the House for a news conference to call on Republicans to fund programs to combat the spread of the Zika virus at the U.S. Capitol September 7, 2016 in Washington, DC. Congress returned yesterday from a seven-week break during which time the Florida Department of Health confirmed the first local cases of Zika on July 29. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 07: Democratic National Committee Chair Rep. Debbie Wasserman Schultz (D-FL) (L) and House Minority Leader Nancy Pelosi (D-CA) join fellow Democratic members of the House for a news conference to call on Republicans to fund programs to combat the spread of the Zika virus at the U.S. Capitol September 7, 2016 in Washington, DC. Congress returned yesterday from a seven-week break during which time the Florida Department of Health confirmed the first local cases of Zika on July 29. (Photo by Chip Somodevilla/Getty Images)

Speaker of the House Paul Ryan, R-WI, (2nd L) gestures during a press conference with Congresswoman Cathy McMorris Rodgers (L), R-WA, Richard Hudson, R-NC,(2nd-R) and House Majority Whip Steve Scalise (R), R-LA, following a closed door meeting between GOP leaders on Capitol Hill in Washington, DC, September 7, 2016. / AFP PHOTO / JIM WATSONJIM WATSON/AFP/Getty Images

WASHINGTON, DC - SEPTEMBER 07: Speaker of the House Paul Ryan (R-WI) departs a press conference at the U.S. Capitol September 7, 2016 in Washington, DC. House Republicans and House Democrats continue to battle over the wording of the legislation designed to stem the effects of the Zika virus. (Photo by Win McNamee/Getty Images)

WASHINGTON, DC - SEPTEMBER 07: Speaker of the House Paul Ryan (R-WI) listens to questions during a press conferece with members of the House Republican leadership at the U.S. Capitol September 7, 2016 in Washington, DC. House Republicans and House Democrats continue to battle over the wording of the legislation designed to stem the effects of the Zika virus. (Photo by Win McNamee/Getty Images)

WASHINGTON, DC - SEPTEMBER 07: Speaker of the House Paul Ryan (R-WI) delivers remarks during a press conference with members of the House Republican leadership at the U.S. Capitol September 7, 2016 in Washington, DC. House Republicans and House Democrats continue to battle over the wording of the legislation designed to stem the effects of the Zika virus. (Photo by Win McNamee/Getty Images)

WASHINGTON, DC - SEPTEMBER 07: Speaker of the House Paul Ryan (R-WI) arrives at a press conference with members of the House Republican leadership at the U.S. Capitol September 7, 2016 in Washington, DC. House Republicans and House Democrats continue to battle over the wording of the legislation designed to stem the effects of the Zika virus. (Photo by Win McNamee/Getty Images)

WASHINGTON, DC - SEPTEMBER 07: Speaker of the House Paul Ryan (R-WI) listens to questions during a press conferece with members of the House Republican leadership at the U.S. Capitol September 7, 2016 in Washington, DC. House Republicans and House Democrats continue to battle over the wording of the legislation designed to stem the effects of the Zika virus. (Photo by Win McNamee/Getty Images)