I for one believe that consideration of impeachment of a president should not include who the vice president is, no matter how brain-dead inept, how much of a worthless piece of human debris, he (or she) may be. Obviously Biden would make an absolute joke of a president, maybe even worse (if that is even possible) than Obama, but that is irrelevant to whether or not Obama is fit to be president. Take one issue on at a time.
In this age...impeachment is simply not a viable option with all of the “political” aspects to it. IN a pue sense of course Obastard should be impeached and removed for derreliction of guty, violating the constitution he swore to protect and defend, and the lengthy list of other transgressions.
These days... after Xlinton’s impeachment, and the reasons for the failure of that enterprise... We now have a political process, not a process to ensure good, honest, earnest, and capable government officials and a method to hold them to account while in office.
Without the political will, and consensus amongst the electorate, impeachment is dead.
Criminal charges after office is a double edged sword too. There were many on the left who wanted GWB to leave office shackles. They would have had him executed if they could have. On nothing more than their twisted moral outrage in the prosecution of the Iraq war.
I don’t have any good answer here. Just laying out the possibilities and the consequences of any action during or after office