Sister Deirdre Byrne, a Catholic nun, speaks at the 2020 Republican National Convention in support of then-President Donald Trump's pro-life policies. | Screenshot: YouTube/PBS NewsHour Addressing an international pro-life conference last week, a Catholic nun who spoke at the 2020 Republican National Convention stressed that the political and cultural battles engulfing the United States are the result of a battle between “the devil, who is real, and Our Lord.” Sister Deirdre Byrne, who gave a pro-life speech at the 2020 Republican National Convention, spoke at the 50th annual conference for the pro-life group Heartbeat International. The 2021 Heartbeat International Virtual Conference took place from April 27-30 in Columbus, Ohio. The conference was “designed for ministry leaders, staff, board members, and volunteers of life-affirming pregnancy help centers, medical clinics, maternity homes, and nonprofit adoption agencies, as well as professionals in the area of medicine, counseling, social work and education.”