How would these events take place if they were scheduled to happen/start today?

[Barack Oganja]

With social distancing going on etc.

1) Party conventions
2) 2020 campaigns for Congress and the White House
3) GE debates
4) Election Day
5) Inauguration Day

[redjohn]

1) Online.
2) Primarily online & TV ads, with some online events.
3) Just like the previous Democratic debate, the candidates' podiums far apart and a couple anchors in a TV studio in DC.
4) It would be all mail-in ballots if states had sensibility. You'd probably see a bunch of states refusing though, and still holding in-person voting. Virus spreads further.
5) A small group on the White House lawn, probably 100ish people standing six feet apart each, if they were smart.

[libertpaulian]

If this is still a problem after Labor Day, I can't begin to imagine how this will affect political campaigning.  Rallies and GOTV efforts would have to be totally revamped.