U.S. Sen. Mark Begich says Republican Joe Miller is putting personal ambition ahead of Alaska's interests and should drop his legal challenge to last month's election.
Unofficial results show Miller lost to Sen. Lisa Murkowski. But he is challenging how the state conducted the election. Miller has said he believes he is doing the right thing.
A Miller spokesman did not immediately return a message Monday.
But Begich says the fight is "virtually certain to fail." He and others argue that failure to certify the race by the time the new Congress is sworn in next month could deny Alaska full representation. Murkowski attorneys argue it also could cost her seniority.
The state GOP has also called on Miller to concede.