Who Ran The Worst Senate Campaign in 2020?

[If my soul was made of stone]

Dems: Bullock, for trying to have his cake and eat it too by first nationalizing the very insular and loose sphere of Montana politics with his quixotic presidential bid and then trying desperately to backpedal to the guy who'd massively outrun the Democratic topline with his homespun appeal as the Senate candidate, after initially denying that he was seeking the seat at all, massively nationalizing the race with the position he attempted to stake in the presidential race and the resistance money and bland one-size-fits-all politicking he invited from the Democratic establishment and thus preventing him from outrunning Biden by nearly enough to make the race as competitive as folk thought it would be. While this year was bound to have a lot of downballot realignment either way, he seems to have brought the Dems running for Governor and MT-AL down with him a fair bit by tearing open the veneer that once kept his state's politics isolated enough from the outside world to give him a career there in the first place.

GOP: Tied between Loeffler and McSally for all the aforementioned reasons

[If my soul was made of stone]

Such an Atlas question, but any picks for worse winning campaign(s) or best losing campaign (s)?

Worst winning campaign: Tuberville
Best losing campaign: Ronchetti