President Barack Obama Tuesday morning continues a Holy Week tradition that has helped him develop relationships with some of America’s most high-profile Christian leaders — an Easter Prayer Breakfast at the White House. More than 100 Christian leaders of different denominations and political persuasions are expected, according to a White House official. But the gathering, the first of which took place last Easter, also allows a president whose faith is at times questioned the opportunity to worship with an array of bold-faced names in the Christian community.