at the federal level? I doubt he is for that, let him clarify. the federal government is going to come in with gay civil union laws to override a state that has decided it doesn't want them?
civil unions is a state's rights issue. where it has been put to the voters, its failing uniformly.
Just as Roe v. Wade legalized abortion on demand throughout all 9 months, so would another potential court ruling. Look how impossible it has been to overturn Roe v. Wade since the legal atrocity occured. The Federal Marriage Amendment - co-authored by THE strict constructionist Judge Robert Bork - would have protected states from such a ruling as it pertains to gay marriage/domestice partnerships/civil unions. Giuliani strongly and vocally opposed the Federal Marriage Amendment.