Donna Sheldon visited Covington Friday to share her plan to shake up the federal government, and topping her list was implementing term limits and balancing the budget. An 11-year state representative, Sheldon is among six Republicans and one Democrat seeking to replace U.S. Rep. Paul Broun, R-Athens, who is giving up his seat to run for the U.S. Senate. Fellow Republican candidates include Jody Hice, a pastor and 2010 candidate for Georiga’s 7th Congressional District before redistricting; businessman and retired Army officer Stephen Simpson; trucking executive Mike Collins; attorney Gary