That’s exactly what she’s saying.
The Democrats have made up their mind that Donald Trump could never win an election constitutionally, a document they have trampled repeatedly.
In other words, if he wins in 2020 (and I believe he’ll win in a landslide) the Democrats will continue to resist him and fight him as being illegitimately elected.
In addition to being the Party of slavery, the Ku Klux Klan, lynching, abortion, infanticide, racism, coup d'état, the Trail of Tears, Japanese internment, the Steel Dossier, the Mueller Dossier, voter fraud, illegal immigration, et al., and the Party of Hate and Evil, the Democrat Party is also the Party of the Law of the Jungle.