Laura McDonnell, left, moderates a gubernatorial candidate forum between, from left to right, Jonathan Kreiss-Tomkins, Bernadette Wilson and Dave Bronson at the Baranof Hotel on Oct. 7, 2026. (Mark Sabbatini / Juneau Independent)

Three former Alaska governors — Democrat Tony Knowles, Republican Frank Murkowski and independent Bill Walker — are endorsing Democrat Jonathan Kreiss-Tomkins in his race against three Republicans in the Nov. 3 general election.

U.S. Sen. Lisa Murkowski, R-Alaska, also announced Tuesday she…