1. If the official results confirm that, a runoff will be held April 18.

2. Why do the same rules not apply to the runoff as to any other election?

3. A runoff in that contest is set for June 20 and right now looks to be a toss-up.

4. Tracking this surface runoff helps scientists account for ice lost to melting each year.

5. If no one secures more than half the vote, the top two finishers will go to a runoff on June 20.