House Speaker Paul Ryan, the 2012 GOP nominee for vice president and principled Randian objectivist, is no real fan of the “self-made” Donald Trump. That much we can be sure of. Remember in early May when he told CNN’s Jake Tapper that he was just not ready to support the brash billionaire in his quest for the presidency?

It was the beginning of a tug-of-war inside the Republican Party over whether principles and the moral grounds of conservatism were at stake, or coalescing around whomever voters put atop the ticket was the primary concern in order to defeat Hillary Clinton and the neoliberal agenda she represents.

The matter still seems to be unsettled.

Here’s a look back at where the rocky Ryan and Trump relationship went wrong:

Trump claimed he’s ‘just not ready’ to endorse Ryan in his re-election bid

AP Photo/ Evan Vucci

For a man who sees things in the very binary terms of the WWE wrestling world, if you’re not publicly in Donald Trump’s corner — you are against him. And that makes you the enemy. Trump made a mockery of Ryan’s inability to fully support the former reality TV star by repeating his words against him.

The Washington Post called it “an extraordinary breach of political decorum,” and pointed out the tactics behind the move: An attempt by Ryan to shield down-ballot Republicans from the fallout an awry Trump campaign could potentially cause.

Ultimately, it was futile.

Ryan eventually boarded the #TrumpTrain

After some in-perosn meetings that followed “several” phone calls, Speaker Ryan penned an op-ed in the Janesville Gazette announcing his support for the unruly GOP nominee, while tweeting that he was “confident” Trump would help turn conservative ideas into laws.

“A Clinton White House would mean four more years of liberal cronyism and a government more out for itself than the people it serves. Quite simply, she represents all that our agenda aims to fix,” Ryan said at the time.

Fallout from the ‘Access Hollywood’ recording

Just when the unthinkable was to happen, where Trump was set to join Ryan in his home state of Wisconsin in a joint campaign appearance, the October surprise we’ve all been waiting for surfaced in the form of a 2005 tape where Trump bragged about his ability to grope women due to money and fame. Ryan’s team announced they would not be appearing together, and it appeared as if the top congressional Republican would totally disavow the GOP nominee when he suggested the party turn toward its down-ballot races to ensure Clinton “does not get a blank check with a Democrat-controlled Congress.”

That, of course, set off a temperamental tweet storm from Mr. Trump:

Although Ryan’s endorsement of Trump remains current, the former VP pick has widened the chasm between Republicans who want to appeared unified behind their party nominee, and those who have called upon the mercurial businessman to step aside so that a more traditional candidate — such as Mike Pence — can lead the effort against Clinton and the Democrats’ machine.