VP Harris doesn't need to make much of an argument for her Presidency. The economy is doing great. Trump is likely to crash it. All she needs to do is keep up the investments started in the last administration that have supported infrastructure and manufacturing, and the economy will continue to hum. Hopefully she can push some anti-monopoly legislation and enforcement so that prices are set by competition rather than CEOs to control rising prices.

Right now it looks like she will have a big enough win that Trump will not be able to make much of a fuss. While it is unlikely he can win even the electoral college, there are though still some paths to steal the election.