Hi bpermann,
Congratulations on the new-to-you North Trail and welcome to the Heartland Owners Forum.
First thing I'd check would be the outside power pedestal to make sure it's providing appropriate power. The next thing to check would be to make sure the power cord is fully locked into place at the trailer receptacle.
If those look good, check the circuit breakers. When breakers trip, it can be hard to tell visually. Sometimes you just have to go 1 by 1 and flip them off and back on.
I'd also check for a GFCI outlet in the bathroom. Press the reset button.