ABC News' Eloise Harper: For the first time the press has been invited to join New York Senator Hillary Clinton on an outing to church - a woman led the congregation, Associate Pastor Rev Jill Flyr. Coincidently the topic of the sermon was the Children's Defense Fund - a cause familiar to Clinton - and one she brings up regularly while campaigning. Flyr said to the audience in her sermon ""let the candidates know that they need to be strong advocates for children." Bonnie Campbell, the owner of the church, served in the Clinton administration as Head of the Violence...