They have been running ads for months already with these kinds of claims without any response from Trump or allied orgs. Having extra cash makes a difference. The base didn’t start providing our own side money until Trump was convicted...months too late...we have a lot of catch up to play.
People passively absorb messages they hear and it will influence the subconsciously...that is why we must have our own message competing with the other side’s messaging...not allowing it to go months on end without any response. Trump and Biden are more even in money...but a big part of that is because Biden/DNC has already spent many millions of dollars in campaign advertising and campaign GOTV infrastructure - Trump/RNC are way behind.
It amazes me how Republicans never have a strong response to this particular lie. They seem to just count on people not believing it. They even had people believing it back in the 1984 Reagan landslide, but Mondale was such a bad candidate that it didn’t matter. I would think Trump is more on top of this than the typical incompetent Republican.