Not the leading edge of the new American Catholics. That is conservative in general and staunchly pro-life, at the time when the Democrat party has gone off-the-cliff pro-gay and pro-abort.
The bulk of American Catholics still associate the Democratic party with the ethnic working class. That association is a relic of the past and it will change.
Nothing will change with the Catholics, the majority will always support the pro-abortion democrats, we will be lucky if we can get a couple of more republican presidential votes from them, to go along with the 4 or 5 from the past.