We should choose representatives and electors by lot. Senators should be chosen by the state legislature and the electors should choose the president. There should be no elections.
Everybody's name goes in a hat and they draw one. Joe Smith, you are your district's representative for the next two years. Go do your best. PS: Your name never goes back into the hat again.
We certainly could not do worse than we have now and could do a whole lot better. Plus we'd be spared these interminable campaigns.