Blah Blah Flowers

Is it a legally sound position to argue for a temporary ban on something in the hopes that it's made illegal two or three years down the line? This seems to be what the Catholic Action League of Massachusetts is arguing in the States. Can they do this? Surely the only action they can take is to argue that gay marriage is illegal full stop, if they can't or won't surely they can't ask the court to basically put everything on hold on the chance that Bush might win the next Presidential election and might decide to change the Constitution and that might get through whatever the stages of the political system are and might not get successfully challenged...

If this gets through could liberals get the