These views were exported to the United States. John Jay in 1788 promoted the New York legislature to require officeholders to renounce foreign authorities "in all matters ecclesiastical as well as civil.". More significant anti-Catholicism has historically been conspicuous among the beliefs of various nativist organisations from the Know-Nothing Party in the 1850s to the Ku Klux Klan in the 1920s. The case of the murder of Father James Coyle had more to do with racial issues, but is a prime example of anti-Catholic violence in the US.
In 1846 the U.S. went to war with Catholic Mexico, but this did not produce anti-Catholicism. Hinkley explains this by the force of American nationalism, the general tolerance of religion, and the fact that most anti-Catholics were also anti-war. In more recent years, suspicion of the political aims and agenda of the Catholic Church have been revived several times. In 1949, Paul Blanshard's book American Freedom and Catholic Power portrayed the Catholic Church as an anti-democratic force hostile to freedom of speech and religion, eager to impose itself on the United States by boycott and subterfuge. These accusations continue to garner support because of the Catholic hierarchy's alliance with the right to life groups and threats to withhold Eucharist from Catholics who vote in favor of actions deemed opposed to Church teaching, such as abortion, assisted suicide or same-sex marriage.
It bears mention that this is not precisely excommunication. Few excommunications of political figures have occurred in modern times[2]. The confirmed cases of excommunicated Catholic politicians were primarily Communists or military dictators. Added to that according to Catholic teaching those in a state of mortal sin should not receive the Eucharist, which Catholicism considers a biblical rule that is not specific to any occupation.
The most recent Gallup states that 30% of Americans have an unfavorable view of the Catholic faith with 57% having a favorable view. This is a higher unfavorability rate then in 2000, but considerably better than in 2002. Those who are not Christian or irreligious had a majority with an unfavorable view, but in part this represented a negative view toward al Christianity. The Catholic Church's doctrines, the priest sex abuse scandal, and "idolizing saints" were top issues for those who disapproved. On the other hand greed, Catholicism's view on homosexuality, and the celibate priesthood were low on the list of grievances for those who held an unfavorable view of Catholicism.
Sorce