The neurosurgeon treating Mark Kirk said in a statement Thursday that the U.S. senator has undergone a second surgery to relieve pressure on his brain. Kirk suffered a stroke last weekend and remains in "serious but stable condition."
Updated at 3:52 p.m. The neurosurgeon who operated on Illinois U.S. Sen. Mark Kirk following a stroke this weekend said the senator is "doing better than [the doctor] expected he would be doing at this point."Dr.