When the U.S. Conference of Catholic Bishops kicked off their “Fortnight for Freedom” campaign almost two weeks ago, they chose an auspicious feast day to start. On the Church’s liturgical calendar, June 21 commemorates two martyrs who suffered political persecution: St. Thomas More and St. John Fisher, who were killed under Henry VIII for refusing to recognize him as the head of the Church of England. The American bishops have indicated they feel similarly besieged by political forces. To promote “our Christian and American heritage of liberty,” they’ve organized two weeks of activism and prayer, culminating in a nationally televised liturgy on July 4, Independence Day—another date with clear significance for this U.S.-focused event.