Define "incompetent" when in the last two years 10 of the bills Murkowski has sponsored or been a key co-sponsor of have been signed into law.  When she, along with two other Republican woman, came up with a solution to the government shutdown.  When her energy bill passed the Senate with a significant bipartisan vote.  When the F-35s are coming to Fairbanks, mostly due to her refusal to take "no" for an answer.  I'd call her eminently competent.