We had a free and fair election. It doesn't fail to be so just because you cry incessantly to the contrary.
And yes, we do have a way of knowing. States where cries of fraud emanated were investigated by the states themselves. To this day, the only fraud found were sporadic cases which were adjudicated by the states where it occurred. Not one single state found any evidence of any widespread fraud. No court found any evidence of widespread fraud. No justice department found any evidence of widespread fraud. Every single state certified their results. All that eliminated any need for Congress to hold any additional investigations. Plus each states' representatives had the ability to contest their respective state's electors if they believed the election was free and fair; and some did just that. They still did not determine the election was not free and fair.
You're out of your ******* mind.
Worse than ever before.