# Stem Cell Research Enhancement Act

Stem Cell Research Enhancement Act was the name of two similar bills that both passed through the United States House of Representatives and Senate, but were both vetoed by President George W. Bush and were not enacted into law.

## Stem Cell Research Enhancement Act of 2005

The Stem Cell Research Enhancement Act of 2005 (H.R. 810) was the first bill ever vetoed by United States President George W. Bush, more than five years after his inauguration. The bill, which passed both houses of Congress, but by less than the two-thirds majority needed to override the veto, would have allowed federal funding of stem cell research on new lines of stem cells derived from discarded human embryos created for fertility treatments.
The bill passed the House of Representatives by a vote of 238 to 194 on May 24, 2005., then passed the Senate by a vote of 63 to 37 on July 18, 2006. President Bush vetoed the bill on July 19, 2006. The House of Representatives then failed to override the veto (235 to 193) on July 19, 2006.

## Stem Cell Research Enhancement Act of 2007

The Stem Cell Research Enhancement Act of 2007 (S. 5), was proposed federal legislation that would have amended the Public Health Service Act to provide for human embryonic stem cell research. It was similar in content to the vetoed Stem Cell Research Enhancement Act of 2005.
The bill passed the Senate on April 11, 2007, by a vote of 63–34, then passed the House on June 7, 2007, by a vote of 247–176. President Bush vetoed the bill on June 19, 2007, and an override was not attempted.

## Stem Cell Research Enhancement Act of 2009

The bill was re-introduced in the 111th Congress. It was introduced in the House by Representative Diana DeGette (D-CO) on February 4, 2009. A Senate version was introduced by Tom Harkin (D-IA) on February 26, 2009. The House bill had 113 co-sponsors and the Senate 10 co-sponsors, as of November 20, 2009.

## Legislative history

| Congress | Short title | Bill number(s) | Date introduced | Sponsor(s) | # of cosponsors | Latest status |
| 111th Congress | Stem Cell Research Enhancement Act of 2009 | H.R. 873 | February 4, 2009 | Rep. Diana DeGette (D-CO) | 113 | Referred to the House Committee on Energy and Commerce. |
| 111th Congress | Stem Cell Research Enhancement Act of 2009 | S. 487 | February 26, 2009 | Sen. Tom Harkin (D-IA) | 10 | Read twice and referred to the Senate Committee on Health, Education, Labor, and Pensions. |
| 110th Congress | Stem Cell Research Enhancement Act of 2007 | H.R. 3 | January 5, 2007 | Rep. Diana DeGette (D-CO) | 217 | Passed the House (253–174) |
| 110th Congress | Stem Cell Research Enhancement Act of 2007 | S. 5 | January 4, 2007 | Sen. Harry Reid (D-NV) | 41 | Passed the Senate (63–34). Passed the House (247–176). Vetoed by President. |
| 109th Congress | Stem Cell Research Enhancement Act of 2005 | H.R. 810 | February 15, 2005 | Rep. Michael Castle (R-DE) | 200 | Passed the House (238–194). Passed the Senate (63–37). Vetoed by President. Veto Override Failed in the House (235–193). |
| 109th Congress | Stem Cell Research Enhancement Act of 2005 | S. 471 | February 28, 2005 | Sen. Arlen Specter (R-PA) | 43 | Read twice and referred to the Senate Committee on Health, Education, Labor, and Pensions. |