Honestly, this just seems like sore-loser dooming by the IN GOP establishment. Beckwith is a lunatic, a grifter, or both. However, this race is basically a lock for Braun barring some freak unforeseeable event even if there was a swap out for Donnelly (spoiler alert: there won’t be).
And even then, it might not matter. The so-called “minor and inconsequential issues” Morales was attacked for were misrepresenting the nature of his military service and - in a September surprise - sexually assaulting multiple women (as in grabbing and forcibly kissing them after they rejected his advances, as well as pinning one of them against the wall and repeatedly rubbing his junk against her when she wouldn’t stop struggling to get away). Morales won the IN SoS race by solid double-digits, beating expectations.
Outside of huge freak circumstances, I’d argue Indiana has been gone for Democrats in statewide elections since 2016 at the latest. 2012 was really the last hurrah where at least the Governor’s race was genuinely competitive (people forget how weak and unpopular a statewide candidate Pence was prior to being picked as Trump’s VP).