Why is the race so close?

[GeneralMacArthur]

The only states that are close are FL and PA.  The only plausible victory map for Trump involves winning both of those states.  538 has Biden +4.5% in PA and +1.8% in FL.  Additionally, Biden has a lot of backup plans, such as winning AZ+NE-02 (+3.5% and +2.3%) or winning NC (+0.4%).

So on paper, the election isn't close.  The reason everyone is so worried is because:
A)  The remaining events of the campaign are likely to favor Trump
B)  The high likelihood of election-rigging shenanigans by the Trump campaign and Republican operatives, many of which are already underway in WI, PA and FL

Still, the 56.7% chance betting markets are giving Biden seem low.  I'd personally give Biden about a 70% chance as things stand right now.  (B) is what concerns me most, since Biden has been fairly impervious to the Trump administration's assaults.

[GeneralMacArthur]

Despite everything that’s happened(Covid-19, Recession, George Floyd, “Dead Soldiers are suckers” “I didn’t wanna cause a panic”, nearly 200,000 Americans dead) the race is 5+ Biden or 2+ Biden.

We do not hold him responsible for any COVID-19 problems. He provided all the necessary equipment.  He did Not order + testing folks dumped on nursing homes.  In fact I consider a direct attack by China in order to get rid of Trump.

Trump is straightening out NATO. He is causing Putin all sorts of problems. The Sunni Arab worlds wants him.  Iran hates him. He has made us energy self sufficient.  He met last year’s
CO-2 reduction goal.   That is just for starters.

You actually believe he is responsible for every single COVID-19 death?

People missed out on this absolutely insane post.

1: Trump did not provide all the necessary equipment.  Democrats begged him to use the Defense Production Act to produce PPE and he refused.  He refused to coordinate supplies and told states to fight each other for what PPE remained.  The USPS wanted to send free masks to everyone to ensure we all had basic PPE and Trump killed the idea, forcing people to squabble and fight for masks.  State governors had to operate independently of the federal government to borrow ventilators and PPE from foreign countries.

2: No, COVID is not a direct attack from China.

3: No, Trump is not "straightening out" NATO.  He relentlessly attacks and humiliates NATO on the international stage and has changed U.S. policy to fundamentally undermine the core tenets of the alliance, such as going to other countries' aid, as they came to ours after 9/11.

4: No, Trump has not made us energy self-sufficient.  We still import plenty of oil.  Net oil exports have declined under Trump, but they have been declining at the exact same rate since 2006, it is not due to  anything Trump did.

5: No, Trump is not "causing Putin all sorts of problems."  Putin has gotten to do literally whatever he wants for the last four years.  He's completely taken over half of Ukraine and turned Syria into a genocidal puppet state.  He sponsored hits on American soldiers and Trump pretended he didn't know about it.  He continues to run a Russian state military operation dedicated to undermining American democracy, with absolute impunity.