The majority of Catholics who actually go to church regularly vote Republican.
The majority of White Catholics vote Republican.
There are more Catholic Republicans in the U.S. House of Representatives than Catholic Democrats.
The Catholic vote was democrat before Hispanics showed up, and will remain democrat, although most of the diminishing number of whites who remain catholic, are becoming moderate republicans.
The majority of the vote of the members of the Catholic denomination, will continue to vote democrat, it is a democrat voting denomination.
By the way, you are totally wrong about the house.