"infighting" and a "divided opposition" are what you get during primary season.

The problemo is that we Brits, at this distance, can't see a divided Republican caucus. And we naturally draw analogies with the UK like:
1) a winning leader with questionable morals who just wants to be leader. All else is expediency thereto.
2) isolationist/xenophbic policies
3) vituperative electioneering
4) divided opposition

Albeit, we Brits are more reserved on that scale, but we are more shocked by the level, maybe.

We have a stake in the poutcome (finger trouble but I'll take the pun) after all, NOW!