Hillary decided to coast, and won lots of votes in very few places, overall.
The 57 Counties, nationwide, who favored Hillary Clinton turned out her 60 odd million 'popular' votes, and the 3,084 Counties, nationwide, who favored (the Non-Hillary) Donald Trump, gave the President his 60 add million popular vote count, in addition to the overwhelming Electoral votes which the contest was all about.
Who knows what may have happened had Hillary be able, or willing, to visit those places she took for granted, whole States never visited at all, while she chose to raise money and visit with her friendly audiences at home, and on the left coast, in abandonment of so many U.S. Citizens who simply did not believe her, and refused to vote for her.
Even more alarming in a way is Senator Bernie Sanders, Socialist who spent his honeymoon in Russia, and preaches leftist ideas, some may say crackpot ideas about total Government funding for everything, while having a record of only about 4 or so successful laws introduced that got passed in all his years in Congress, and who drew over 45% of Democrat votes in the Primary.
Hillary who lies without a second though, and gets a pass for it legally in her long career, could not bring herself to fully embrace all of Sanders ravings, and did not carry many of his supporters in the general election, who either stayed home, or voted for Jill Stein or some equivalent leftist entity.
I give Hillary her due. Her most avid supporters, and avid Democrats turned out for her in her true base States. The examination of our electorate records now underway may give us all greater understanding of the validity of the vote and those Registered to vote, and help explain California and a few other spots who favored one or another of the Candidates this time around.