There is a Tea Party, at Tridentine Mass said in Latin every Sunday 8am at Serra Chapel, Mission SJC

InsideCatholic.com - Is It Time for a Catholic Tea Party?.

For American Catholics, the equivalent of centralized federal power is the United States Conference of Catholic Bishops (USCCB). The USCCB, the kind of episcopal conference authorized by Vatican II, has no canonical authority of its own. But its voice is considered authoritative by the media, and it is treated as such by those who applaud its lobbying efforts in Congress and the White House.