WASHINGTON, July 30 - U.S. President George W. Bush has scheduled a news conference in the White House Rose Garden at 10:30 a.m. EDT/14:30 GMT on Wednesday, the White House said. A White House official said no major announcements were expected. The president is likely to face questions over his handling of now-discredited comments that Iraq was seeking to buy African uranium, as well as Iraqi reconstruction and his efforts to revive the struggling U.S. economy.