Are enough Catholics still pro-Life for Obama’s game-playing to matter?

I have some familiarity with Church history and doctrine, owing to my background as a European history major.  I am woefully ignorant, however, about modern Catholicism — or, more specifically, modern American Catholicism.  I therefore have a question for those of you who are Catholic:  Does it matter to a critical mass of American Catholics that Obama is sponsoring a health care plan that requires Americans to pay for abortion and that he is lying about that fact?  Kathryn Jean Lopez thinks it matters a lot:

[T]he loss of Sen. Edward M. Kennedy, one of the most prominent Catholic politicians in the United States, a leading proponent of the president’s health-care-reform push, should not obscure a pivotal fact: Barack Obama has put himself at war with the Catholic Church.

[snip]

On August 11, Cardinal Justin Rigali of Philadelphia sent a letter to members of the House of Representatives about the health-care legislation under consideration. He highlighted legislative language that would open the door to taxpayer-funded abortions. He pointed out that when amendments were introduced this summer that would have protected against this — would have protected life — they were shot down. That’s a bad precedent. If that’s how life fares when the C-SPAN cameras are on, what happens when it comes time for the behind-closed-doors compromises?

[snip]

On August 11, Cardinal Justin Rigali of Philadelphia sent a letter to members of the House of Representatives about the health-care legislation under consideration. He highlighted legislative language that would open the door to taxpayer-funded abortions. He pointed out that when amendments were introduced this summer that would have protected against this — would have protected life — they were shot down. That’s a bad precedent. If that’s how life fares when the C-SPAN cameras are on, what happens when it comes time for the behind-closed-doors compromises?

I agree with everything Lopez says — and I believe that Catholics who hold to the tenets of her faith will agree with her. I just wonder how many of those Catholics are left in America. I’m not talking about people who just say they’re Catholic, but people who actually believe this issue matters. Can you tell me how many of those people there are?  I know there were a lot in the 60s and 70s, but are they still around?  Or are the majority of Catholics people who pay lip service to these doctrines but don’t really belive that they apply to life in America?