President Obama doesn’t include in his proposed budget announced Monday any money for changes to Mayport to make it able to accommodate a nuclear-powered aircraft carrier, the Associated Press reported. The Navy has put on hold plans to move a carrier from the Norfolk area to the Jacksonville port. Navy officials had wanted to spread out the east coast fleet to avoid a situation where all of them could be threatened in one port at once. The AP (via the News Service of Florida) quoted U.S. Sen. Mark Warner of Virginia as saying in a statement that the Navy now plans to keep the carriers at Norfolk, at least through 2020. Florida has pushed for Mayport to get a new carrier since the John F. Kennedy, which previously was ported there, was decommissioned in 2007. The Government Accountability Office says upgrading Mayport for a nuclear carrier would cost more than $250 million, with the Navy pegging the cost at more than twice that.