Republican presidential nominee Donald J. Trump, who has struggled with Catholic voters in some polls, on Wednesday named an advisory council of respected conservative Catholic leaders. The list of 33 advisors includes prominent Pennsylvanians, such as former Republican Sen. Rick Santorum, who ran for president in 2012 and 2016; Faith Whittlesey, former U.S. ambassador to Switzerland and a high-ranking political official in the Reagan White House; and U.S. Rep. Mike Kelly, Republican of Erie. Trump, who expressed support for abortion rights earlier in his public career – he has said he changed his mind – has had difficulty winning the trust of some Catholic activists on abortion and other issues. …Joseph Cella, founder of the National Catholic Prayer Breakfast, will be the chief liaison to the campaign for Catholic affairs. In March, during the primaries, Cella signed an open letter along with other Catholic intellectuals and leaders calling Trump“manifestly unfit to be president.” The letter cited his vulgarity, appeal to racial and ethnic fears, and questioned whether he was committed to stopping abortion and strengthening “marriage culture.” The list of Catholic heavyweights signing on to advise Trump includes Marjorie Dannenfelser, president of the anti-abortion group Susan B. Anthony List; Kansas Gov. Sam Brownback; Matt Schlapp, president of the American Conservative Union; former Oklahoma Gov. Frank Keating (R); U.S. Rep. Steve Chabot, Republican of Ohio; Jim Nicholson, former Republican national chairman, secretary of veterans affairs and ambassador to the Vatican; longtime conservative leader Richard Viguerie; and Tom Monaghan of Michigan, founder of Domino’s Pizza and the Ave Maria University.