Both of them have penis envy. Trump fired Bolton and that's a sting that apparently has not stopped hurting yet.
Romney blew the 2014 election because he didn't have the balls to go after Obama with all guns blazing. Like McCain, he was afraid of being called a racist
Trump's been a racist since he was old enough to understand language, and he's been accused of even worse crimes, unlike Bolton and Romney (as bad as they are):
https://en.wikipedia.org/wiki/Legal_affairs_of_Donald_Trump#Personal_and_sexual
"In 1992, Trump sued ex-wife
Ivana Trump for not honoring a gag clause in their divorce agreement by disclosing facts about him in her best-selling book.
"Trump won the gag order.
[43][44][45]
"The divorce was granted on grounds that Ivana claimed Donald Trump's treatment of her was 'cruel and inhuman treatment'.
[46][47]
"Years later, Ivana said that she and Donald 'are the best of friends'.
[48]
"
A sexual assault claim from 1994 for child rape was filed against Trump on October 14, 2016,[49] a case that was dropped and refiled, remaining in suspension as of November 4, 2016.
[50]
"In April 1997, Jill Harth Houraney filed a $125,000,000 lawsuit against Trump for sexual harassment in 1993, claiming he 'groped' her under her dress and told her he wanted to make her his 'sex slave'".
"Harth voluntarily withdrew the suit when her husband settled a parallel case.
"Trump has called the allegations 'meritless.'"