Alaska's incumbent Republican US Senator Dan Sullivan advanced to November's general election after Tuesday's primary, comfortably outpolling a challenger who shares his exact name. The situation has drawn attention because most observers believe the challenger, a retired federal employee and teacher, is a "confusion candidate" deliberately entered to siphon votes from the sitting senator in Alaska's open primary system.

The challenger, also called Dan Sullivan, finished third in the primary vote. Under Alaska's electoral rules, the top four vote-getters proceed to the general election, meaning both men named Dan Sullivan are set to appear on the November ballot.