A federal lawsuit filed by a national political watchdog group accuses the Bush administration of violating the separation of church and state by funding a marriage enrichment organization associated with Churches of Christ. The lawsuit by Americans United for Separation of Church and State puts the Vancouver, Wash.-based Northwest Marriage Institute, directed by Bob Whiddon Jr., at the center of an escalating national debate. “We are squeaky clean in this matter,” said Whiddon, who served as pulpit minister at the Eastside church in Portland, Ore., for nearly 10 years before starting the marriage institute in 2004. “Those that have filed...