U.S. President George W. Bush rejected proposed Democratic changes to his prized AIDS relief program, issuing a challenge Sunday to Congress to «stop the squabbling» and renew it, according to AP. Tanzanian leader Jakaya Kikwete made an impassioned appeal for the same thing, saying thousands in his country would orphan their children if U.S. lawmakers do not act. There is broad support in the Democratic-controlled Congress for the anti-AIDS spending that has become the largest-ever international health initiative devoted to one disease, so there is not much danger of failing to continue it. The president's three-night stay in this vast East African nation takes him to a part of the continent that is important in the U.S. fight against terrorism. The bombed-out former U.S. Embassy in Dar es Salaam still stands as a stark reminder of deadly attacks in Tanzania and Nairobi, Kenya, in 1998. The visit to Tanzania is the longest of Bush's six-day African trip and longer than usual for the president anywhere. The stay and the celebration of a new, five-year US$698 million (¤476 million) U.S. aid pact were intended as goodwill messages to Tanzania's large Muslim population. It seemed to work. In contrast to the protests that often greet him at home and abroad, Bush repeatedly received enthusiastic receptions in Tanzania. A large and spirited crowd waved U.S. and Tanzanian flags Sunday as he walked into the graceful, oceanfront State House for meetings with President Kikwete. «Different people may have different views about you and your administration and your legacy,» said Kikwete after he and Bush signed the aid deal. «But we in Tanzania, if we are to speak for ourselves and for Africa, we know for sure that you, Mr. President, and your administration, have been good friends of our country and have been good friends of Africa.» The President's Emergency Plan for AIDS Relief, known as PEPFAR, has raised the number of Africans on anti-retroviral treatments from 50,000 to 1.2 million.