If we accept, just for the sake of discussion, that Trump got 75 million votes and Biden got 80 million votes, that's 155 million votes out of an estimated 214 million registered voters in the United States.
That means that 75% of voters turned out, or 65% of the overall population.
Two out of every three people you meet voted, and three out of every four were eligible to vote.
That doesn't leave a lot of room to grow the voter base; it must be converted from the other side to yours.
Limbaugh is saying that the job to do that is more difficult than perhaps at first thought, because more people voted for Biden than were expected to by the right.
That's all that he's saying. Accept it or not.
-PJ
So the goal is simple - Maga must take control of elections back in these same swing states, and also force federal model election laws for federal elections -- Voter ID, yearly purging of the voter rolls, signature verification, elimination of all "Consent Agreements", many more -- which will force states to come to heel because there is no way states will have one site/workers/polljudges/etc for Federal and one site/workers/polljudges/etc for non-Federal.