It will be close. The Dems have won the popular vote in 6 out of the last 7 elections. In the long term, demography is destiny. Mass immigration and high minority birth rates (compared to whites) will make the Dems the permanent majority party within a decade. It is why the Dems have jumped the shark re immigrants, legal and illegal.
Through cheating. Sanctuary cities need to have their district totals tossed.
(there's no such thing as "the popular vote")