US Senate to vote on abortion rights bill -- but what would it mean to codify Roe into law?

Contributing sentiments towards policy:

46% : But the Casey court concluded that Roe too severely limited state regulation prior to fetal viability and held that states could impose restrictions on abortion throughout pregnancy to protect potential life as well as to protect maternal health - including during the first trimester.
45% : Has the right to abortion ever been guaranteed by federal legislation?
44% : To codify Roe for all Americans, Congress would need to pass a law that would provide the same protections that Roe did - so a law that states that women have a right to abortion without excessive government restrictions.
44% : In Casey, the court upheld Roe's holding that a woman has the right to choose to terminate a pregnancy up to the point of fetal viability and that states could restrict abortion after that point, subject to exceptions to protect the life or health of the pregnant woman.
43% : Massachusetts and other states are looking to go a step further by protecting residents who help out-of-state women seeking abortion.
43% : Similarly, any attempt to put in place a federal law that would restrict abortion for all would seemingly conflict with the Supreme Court's position that it should be left to the states to decide.
41% : Should Congress be able to pass a law enshrining the right to abortion for all Americans, then surely some conservative states will seek to overturn the law, saying that the federal government is exceeding its authority.
41% : If it were to go up to the Supreme Court, then conservative justices would presumably look unfavorably on any attempt to limit individual states' rights when it comes to abortion.
37% : Up to the late 1960s, a majority of Americans opposed abortion.
22% : Senator Collins has recently indicated that she will not support the Act out of concern for religious liberty of anti-abortion health providers.

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