None.
Are there a literal handful of people who voted when they shouldn't have? Probably. But they always get caught every election year. Voter fraud is exceedingly rare in the United States.
Instead of having one uniform narrative, Trumpcucks are firing dozens of different conspiracy theories left and right alleging that there was a systemic effort to tip hundreds of thousands of votes in favour of Biden. Unfortunately for them, all of these are baseless. Trump's lawsuits are by and large failing in the courts as we speak. His advisers already know for a fact that their arguments are specious and are already looking for new jobs; none of them have the guts to tell their boss to confront reality.
I doubt it, but it is suprising just how many more votes Biden got, than Obama did in his historic 2008/2012 elections. Especially in states like Pennsylvania, Wisconsin, Michigan, Georgia, Arizona... hundreds of thousands of more votes than Obama got.
If the votes were real and legal, good for Biden.
Do you think Trump will concede?
Pennsylvania, Wisconsin, and Michigan have almost always been blue. Before Trump showed up, they haven't voted for a single Republican since Bush Sr. in 1988. The Dems lost these three states in 2016 by the thinnest of margins because, let's face it, Hillary Clinton was a uniquely unpopular candidate and turnout was low. But in no way were these three states guaranteed to be in Trump's column.
Georgia and Arizona are red states that Biden are on track to win. Here's why.
Stacey Abrams built a pretty impressive political machine in Georgia after her loss in the 2018 gubernatorial elections; her organizations helped register 800,000 new voters over the last two years. Trump actually built upon his already-impressive lead with working-class and/or rural white voters. But that was offset by the surge of turnout by in Atlanta, especially amongst African-Americans. When college-educated whites in the suburbs defected to Biden, that made Georgia competitive. See below:
Three main reasons why Arizona is competitive now:
1) Demographics. Maricopa County, which includes Phoenix and accounts for 60% of the state's population, has seen a recent influx of tech workers and other young, college-educated voters. It went for Trump in 2016 but went for the Democratic candidate, Kyrsten Sinema, in the 2018 Senate election.
2) Trump's repeated attacks on John McCain made him less popular amongst old-school Republicans in the state. Honestly, this was just Trump being stupid.
3) Corona. In 2016, a CNN exit poll showed that elderly voters in Arizona voted for Trump by 13 points, 55-42. Now the same poll in 2020 says he's in a 50-50 tie with Biden amongst these voters. See, the Biden coalition did a good job flooding the airwaves with fear-based ads that typically get good responses from boomers. Ads like these:
View: https://www.youtube.com/watch?v=mVPtLJ9qJDw