Aren’t you getting ahead of yourself here?
Example: Mitt Romney got more votes in Wisconsin in 2012 than Trump got in 2016 - and Romney LOST the state.
The House and Senate are more complicated elections.
However, since America imports 3,000 LEGAL immigrants EVERY DAY, and since 80% of those folks will vote Democrat when they become citizens, it is only a question of time before we permanently lose Congress, too.