Hello so this morning I stopped for gas after a couple miles, turned the key, everything seemed powered, push the starter - all power is gone. Seems like there could be a short in the starter switch? I pushed the bike out of the way, noticed lights coming back on, tried to start, same thing. Background - It's a 2002 VT 750 ACE - I ride rain or shine, it sleeps outside - if that makes a difference.. Thank you for any help

The battery may have developed a dead cell.
Try jumping the battery and see if it starts.
If it does, at least one cell in the battery is shot. or the system isn't charging the battery.
Try charging the battery with a plug in charger, and see if it'll start after that.
If it does, ride it a while (but not far, or you may wind up pushing it a long way home)
If the battery is having a harder time starting the bike or won't start it after riding a while, there's something amiss with the charging circuit on the bike.

Alternately if you have a volt meter, check the battery before and after starting the bike. The voltage should be higher than it was originally after starting. If it's not, there's something wrong with the charging circuit.
If it IS higher, but drops significantly after riding, it's the battery, and it'll need to be replaced.