It really comes down to how you define and enumerate the fraud.
In the last Federal election the recounts revealed that there were SEVERAL precincts in Detroit Michigan that had more votes registered for a single candidate than the entire population of registered voters in that precinct.
Obviously common sense tells us that foul play was involved, as the precinct chairmen reporting the vote totals are going to know how many voters they have in their districts, and while you might be able to blame a single precinct as an single anomaly, when there are multiple precincts in a small geographic area with the same anomaly you have clear evidence of coordinated fraud.
So, that fact that voter fraud was involved is a given.
The question then comes down to whether each illegal vote is a instance of fraud, each precinct, each district, each state, etc.
Note that I am not blaming or naming one political party over the other - this type of low-level grassroots fraud can occur in any party without the knowledge or participation of party leadership. The fraud also did not affect the outcome of the election, as the ratio of fraudulent votes as compared to the legitimate ones is so wide that it is statistically insignificant.
Now where I WILL name parties is that trying to say that it is just The Republican Party and not the Democrat Party is either disinformation or willful ignorance. One of my former clients lived in Chicago where as a small boy one of his jobs was to sit inside the election booth and pull the lever for Democrat candidates every time he saw the lever for a Republican candidate move, so that the Democrats would always have more votes. It would not surprise me to find out that Republicans did the same types of things in other precincts.
Additionally, the repeated claim that requiring a voter to provide identification is an attempt to suppress votes is clearly ridiculous. In this country you cannot get a job, open bank account, get a cellular phone, cash a check, or purchase something with anything other than cash without some sort of identification. The ONLY reason to continue to fight "voter id" laws is to enable and promote fraud. A significant percentage of the states have had voter id laws for decades or more, and I only see one political party fighting them in states where they don't already exist.