The numbers on Trump’s actual margin of victory in 2016, once you pop them into a calculator, are pretty stunning.
Trump, although what he claimed was fraud cost him the popular vote (by 2.9 million  ) won the Electoral College by a handy margin in 2016. He did this by taking every single “swing state” he needed to capture to pass the 270 electoral votes needed to become president, under this peculiar democratic safeguard system that was devised during the days of the Peculiar Institution.
Northern states were less inclined than southern states to support the Peculiar Institution (slavery). This is because the north was more industrialized and farmed by small farmers, while the less populous southern states, where large farms (plantations) used slave labor to produce monoculture cash crops (tobacco, cotton). Safeguards were needed to protect the rights of that vulnerable slaveholding minority against the tyranny of a potential slavery hating majority — thus the 3/5 Compromise (one slave equals 3/5 of a white man for apportioning Congressional seats) and the Electoral College. Fair is fair.
Trump handily took the Electoral College — 304 to 227. He won Wisconsin, Pennsylvania and Michigan by a total of 78,000 votes, combined.  This number is 0.000312% of the estimated 250,000,000 American voters. Of course, I intensely dislike the man, so I have jiggered the numbers to make him look less popular than he actually is. Only about 138,000,000 Americans voted in 2016, in a contest between the two most hated political figures in America. That means Trump’s robust Electoral College margin was actually closer to a convincing 0.000609375%. A mandate, a historic mandate, really. Suck it, Dem losers!
Jeez, no wonder Nancy Pelosi is so afraid of doing anything that might empower him or rile up his base!
According to the final tallies, Trump won Pennsylvania by 0.7 percentage points (44,292 votes), Wisconsin by 0.7 points (22,748 votes), Michigan by 0.2 points (10,704 votes). If Clinton had won all three states, she would have won the Electoral College 278 to 260. source