Both campaigns' internal polling shows Bullock up by single digits, you know. It's not a coincidence that Bullock declared for the race immediately after it was clear Biden and not Sanders had the nomination.
This election is in November and Donald Trump will win Montana will win by at least 15 points, you know.
Evan Bayh was also leading the Indiana Senate polls for awhile too. Bullock won’t be able to campaign behind his fake moderate shield when he’s having to run against Donald Trump.
Bayh also had weaknesses that Bullock doesn't. After leaving the Senate, he cashed out as a lobbyist and barely visited Indiana while owning multimillion dollar houses in DC and Florida. Bullock is the popular incumbent governor (like Maggie Hassan or Rick Scott) in a state that flattened the curve very effectively.