By Julie Hirschfeld Davis, The Baltimore Sun Knight Ridder/Tribune Business News
Sep. 16--WASHINGTON--In a rare showdown with President Bush, the Republican-led Senate is set to vote today to overturn new rules that would make it easier for large media conglomerates to expand.
A coalition of Republicans and Democrats and liberal and conservative groups have teamed up to oppose the Federal Communications Commission rules. Those rules have intensified concern throughout the country and in Congress about the rash of consolidation among newspapers and telev