I mean the whole "liberals allowing mexicans to cross the border so they would vote" is a cliche at this point, you think they are all distributed to swing states and close ones and shared in tens of thousands without anyone making a fuss about it and just letting them vote? Of course not, of course we all know this isn't the case, illegal immigrants are another issue that republicans talk about, but we all know the number isn't even nearly enough. The party that won just one popular vote in 30 years will cry foul of course because they can't go out and say "well not enough people like us", that would be silly, so they try to blame losing to something, whatever they can find. Last time it was election rigging, this time illegals, next time could be something else, who knows what it will be.