Catholics are a solid liberal voting block, without Catholics, liberalism would not have advanced so thoroughly in America, and we are importing millions more every year, it isn't saving us money, for instance Obama won 54% of the Catholic vote.
Here is a snap shot of that radical transformational period (and tax raising period) of the 1940s and 1960s for example.
New Deal Coalition: voting % 1948-1964
Percentage of Democratic vote in major groups, presidency 1948-1964
The Catholics who are the solid liberal voting bloc, are not necessarily the pew-sitter who are there every week, and who take Catholic teachings seriously.