The bill has passed 31 state legislative chambers, in 21 small, medium-small, medium, and large states, including one house in AR, CT, DE, DC, ME, MI, NV, NM, NY, NC, and OR, and both houses in CA, CO, HI, IL, NJ, MD, MA , RI, VT, and WA .
Seven senators did not vote, including presidential candidates Joe Biden (D-DE), Sam Brownback (R-KS), Chris Dodd (D-CT), John McCain (R-AZ) and Barack Obama (D-IL).