You are assuming that the repugs actually care about the dems cheating.
Other than Trump, the repugs (who are mostly from heavy republican districts .. ie protected) don't care about the people's vote counting. Gerrymandering protects repugs and dems, and is always negotiated between party elites behind closed doors.
The whole fucking system is rigged to give us a "choice" of candidates that elites of both parties can control.
You are assuming that the repugs actually care about the dems cheating.
Other than Trump, the repugs (who are mostly from heavy republican districts .. ie protected) don't care about the people's vote counting. Gerrymandering protects repugs and dems, and is always negotiated between party elites behind closed doors.
The whole fucking system is rigged to give us a "choice" of candidates that elites of both parties can control.
This is the answer... for the most part, there is very little real competition for districts in Congress.
It's called redistricting when Democrats do it.