For more than 50 years, the National Prayer Breakfast has served as a prime networking event in Washington, bringing together the president, members of Congress, foreign diplomats and thousands of religious, business and military leaders for scrambled eggs and supplication.

Usually, the annual event passes with little notice. But this year, an ethics group in Washington has asked President Obama and Congressional leaders to stay away from the breakfast, on Thursday. Religious and gay rights groups have organized competing prayer events in 17 cities, and protesters are picketing in Washington and Boston.

The objections are focused on the sponsor of the breakfast, a secretive evangelical Christian network called The Fellowship, also known as The Family, and accusations that it has ties to legislation in Uganda that calls for the imprisonment and execution of homosexuals.

The Family has always stayed intentionally in the background, according to those who have written about it. In the last year, however, it was identified as the sponsor of a residence on Capitol Hill that has served as a dormitory and meeting place for a cluster of politicians who ran into ethics problems, including Senator John Ensign, Republican of Nevada, and Gov. Mark Sanford, Republican of South Carolina, both of whom have admitted to adultery.