It’s not unfounded though, there are thousands of people swearing to affidavits, Those are real testimonies of fraud or misdeeds.
The states in question are going everything possible to prevent an actual audit that would help clear it up.
My opinion has nothing to do with what Trump says, I’m more than capable of forming my own opinion by looking at the impossibilities that happened on election night, the unknown number of ballots in the system after 80-90% of the ballots were counted and Trump having a substantial lead. 570000 Biden votes to 3200 Trump votes in one dump in the middle of the night, that is impossible. 95% turnout in cities in swing states, Biden underperforming Clinton all over the country except these swing states.
If it walks like a duck, quacks like a duck it’s a duck.