Their bill on birth control access was filibustered by Republicans in the Senate, but they believe its an issue that will help them in November.
U.S. Senator Jeff Merkley co-sponsored the legislation.
"While some say the case has nothing to do with access, but affordability is access. Without insurance, birth control can cost tens of thousands of dollars over a lifetime."
The legislation aimed to reverse the Supreme Court's Hobby Lobby decision that allows some employers to fail to cover some forms of contraception if its against their religious beliefs.
Merkley say its disappointing that the Supreme Court's dcision gives bosses the right to interfere in their employee's private health decisions.