Miami Herald Opinion on Voting and Abortion

Of course, they misunderstand Cardinal Ratzinger's use of the term "proportionate reasons"...

It says, in other words, that if a Catholic thinks a candidate's positions on other issues are more important [than abortion, euthanasia], a vote for that candidate is not considered a sin.

Source.

But if one wishes to read what "proportionate reasons" actually mean, Jimmy Akin has written a rather good report here, titled, "What Ratzinger Said".