(Asking for a friend.)
Because today she flayed Alan Dershowitz's laughable argument about presidential power by laughing at it:
The will of the voters found its highest and best expression in the election of President Trump, and anything that seems likely to remove him from power or even just inconvenience him a little goes against their will. If the Founders had wanted it to be possible to legitimately remove from office a president the people had selected, they would have made three equal branches of government and devised a specific mechanism for this to occur by a two-thirds vote, or something!
This is why the prospect of another election fills me with so much alarm. We know the voters want Donald J. Trump! They said so, resoundingly, with a minority of their votes, in 2016. Dare we risk overturning that election by holding another? Suppose he were not to win it! That would certainly go against the will of the voters. It would be just as much an overturning of 2016′s results as this impeachment is — perhaps more so, because Mike Pence would not immediately get to become president afterward.
The argument gets even sillier under scrutiny.
(No, she's not, by the way.)