1-23-12, LINCOLN, Neb. (AP) — Republican Attorney General Jon Bruning has filed papers to run for the Nebraska U.S. Senate seat held by outgoing Democrat Ben Nelson.
 
Bruning submitted his papers Monday to the Secretary of State's office. He repeated his opposition to the Obama administration's health care law and EPA regulations he says are killing Nebraska jobs.
 
Bruning has already announced he would seek the seat, and is in a GOP primary race with State Treasurer Don Stenberg, state Sen. Deb Fischer and investment adviser Pat Flynn.
 
Nelson announced last month he would not seek re-election. Former U.S. Sen. Bob Kerrey, a Democrat, has said he's exploring a possible bid.
 
Bruning has won endorsements from former Arkansas Gov. Mike Huckabee, Speaker of the Legislature Mike Flood and 27 other current and former state senators.