The Donald has a lotta enemies to overcome

Enemy Number 1 is Democrats (natch).  Led by Hillary, they hope they can win in November.  Many of them detest Republicans on general principles, kinda like how cats feel about dogs.  It's not ideology or philosophy, it's just plain hatred.
Enemy Number 2 is the MSM.  Everybody in the MSM, reporters, editors, anchorpersons, janitors are  Democrats.  Only being in the MSM they have a really really loud megaphone to broadcast their propaganda.
Enemy Number 3 is the business establishment.  They have a cozy thing going with Hillary, they have contributed to the Clinton Foundation (paid their bribes).  They need favorable regulatory rulings, tax breaks, tariffs, and other crony capitalism things.  They are pretty sure that Hillary will do this stuff for them, as long as they keep paying her.  They have no idea what The Donald will do if elected.  That's scary.
Enemy Number 4 is the RINOs.  Once elected, the RINOs find they like the Democratic tax and spend policies, especially when it results in spending in their districts.  They don't care about tax hikes, they figure they can blame them on the Democrats.  The MSM won't call them on it, and the voters won't fact check them either.
Enemy Number 5 is all the women in the country.  The Donald is a boor, they know it, and that tape last Friday confirmed it.  Plus any woman has gotta like the idea of a female president.
Enemy Number 6 is academia.  Every college prof, every grade school teacher, and every administrator is a democrat.  They consider it their plain duty to brainwash their students, your children, with leftist drivel.  You wonder why the "millennials" are so pro Hillary and anti Trump?  They are coming off of 16 straight years of leftist indoctrination. 
  Good luck Donald.  You need all possible luck. 

How the Republicans lost in 2012

There are a lot of reasons, but number one reason is women voted for Obama 55% to 45%.  That's a ten percent edge, a land slide.  And women are one half the electorate.   Let's not get sidetracked onto Hispanics or blacks or gays.  None of those groups, worthy as they may be, are 50 % of the votes.  Let's concentrate on the main issue.
   I have not seen any polling since the election that tells why women voted so heavily Obama and Democrat.  If the Republicans hope to go anywhere, they have to find out why, especially after suffering thru Great Depression 2.0 for all of Obama's first term, women voted overwhelmingly for Obama in 2012.

   Is it just Obama, a slender sexy guy who dresses well, has good name recognition, and has a good speaking voice? 
   Is it the desire for free contraceptives and federally funded abortion?
   Is it a desire for more food stamps, more health care, more daycare, more welfare, more free stuff?
   Is it (was it) Romney?  Was Romney too much a married family man, to obviously religious, and ineffectual on the campaign trail?
   Is it a feeling that Democrats are better equal opportunity employers than Republicans?
   Is it a distaste for Republican defense spending?
   Do women care that men have been losing their jobs ever since Obama took office?
   Does the Republican stance on abortion drive women away?
   Are women actually in favor of legalizing pot?  And repelled by Republican support for the war on drugs?
   Are there other issues important to women?

Unless the Republicans get back in the good graces of women, they face a grim future.