MADISON, Wis.ââ?¬â?A proposition on California’s ballot this November may affect Wisconsin’s leadership in the field of embryonic stem cell research, experts say. If passed, the Stem Cell Research and Cures Initiative, or Proposition 71, will provide $3 billion in tax-free state bonds over 10 years for embryonic stem cell researchââ?¬â?placing the Golden State at the forefront of stem cell funding.