Religious liberty and the relationship between church and state are two issues that have long vexed the Catholic Church, particularly since the Enlightenment.

Tania is the first woman and the first layperson to lead the university since it was founded by the Jesuits in 1912, writes Cokie Roberts.

Most Americans want Washington to change how it works. But attacking Washington is like punching into fog.

The nation's worst measles outbreak in decades is prompting states to reconsider giving parents ways to opt out of immunization rules.

Faced with a climate emergency, the world must act immediately to mitigate global warming and avoid committing "a brutal act of injustice" on the poor and future generations, Pope Francis told a group of energy and oil executives and global investors.