In 2007, then-Gov. Rick Perry (R-Texas) became the first governor in the nation to sign a bill requiring young girls to get a vaccine against the human papillomavirus, or HPV. A conservative backlash forced Perry to reverse course. He later called the order “a mistake” and acquiesced to the Texas legislature, which overturned the bill.
“The fact of the matter is that I didn’t do my research well enough to understand that we needed to have a substantial conversation with our citizenry,” Perry said during his 2012 run for president.