Paul Ryan endorsed presumptive Republican presidential nominee Donald Trump on June 2, but the two haven't always seen eye-to-eye. (Peter Stevenson/The Washington Post)

When House Speaker Paul D. Ryan endorsed Donald Trump on June 2, the Wisconsin Republican said he was backing Trump even though he and the presumptive GOP presidential nominee didn't agree on everything. On some days, it isn't totally clear whether they agree on anything.

Since his endorsement, Ryan has repeatedly contradicted Trump, desperately trying to preserve the idea that the presumptive Republican nominee doesn't speak for the entire party.

The latest example came Tuesday, when Ryan was asked in a radio interview about a Trump retweet over the Fourth of July holiday weekend that contained a six-pointed-star-shaped image that appeared to have origins in white supremacy circles.

What happened this morning is far from an isolated incident. Here are six other times Ryan found fault with the positions of his party's standard-bearer.

1. The Muslim ban

Speaker of the House Paul Ryan (R-Wis.) told reporters Dec. 8 that the "vast majority" of Muslims are peaceful and the ban on allowing them into the United States proposed by presidential candidate Donald Trump "is not what this country stands for." (AP)

What Trump said: "Donald J. Trump is calling for a total and complete shutdown of Muslims entering the United States until our country's representatives can figure out what is going on."

What Ryan said about it: "This is not conservatism." (An answer we thought, at the time, was pretty good, FWIW.)

2. David Duke

Speaking as voters in 13 states cast their ballots on Super Tuesday, House Speaker Paul Ryan said potential Republican presidential nominees must reject any group "built on bigotry." (Reuters)

What Trump said: Trump equivocated on whether to denounce support from supremacist David Duke: "Well, I have to look at the group. I mean, I don’t know what group you’re talking about."

What Ryan said about it: "This party does not prey on people’s prejudices. I hope this is the last time I need to speak out on this race." (Nope!)

3. Violence at Trump rallies

Republican presidential candidate Donald Trump told supporters at a rally in Cedar Rapids, Iowa, that "there might be someone with tomatoes in the audience." Trump added, "If you see them, knock the crap out of them" as he would "pay for the legal fees." (Reuters)

What Trump said: "Knock the crap out of him, would you?" Trump said to his supporters at a February rally of a potential tomato thrower.

What Ryan said about it: The violence at Trump's rallies is "very concerning," adding: "I think the candidates need to take responsibility for the environment at their events. There is never an excuse for condoning violence, or even a culture that presupposes it."

4. Judge Gonzalo Curiel

What Trump said: From the Wall Street Journal: "The judge has 'an absolute conflict' in presiding over the litigation given that he was 'of Mexican heritage.' "

What Ryan said about it: Ryan told a Wisconsin radio station the comments were "out of left field" and asked Trump to knock it off: “He clearly says and does things I don’t agree with, and I’ve had to speak up on time to time when that has occurred, and I’ll continue to do that if it’s necessary. I hope it's not."

(Notable: This happened literally the day after Ryan endorsed Trump.)

5. Curiel (again)

CNN reporter Jake Tapper asked Republican presidential candidate Donald Trump if his judge attack was racist, then followed up 23 times. (Thomas Johnson/The Washington Post)

What Trump said: "I have had horrible rulings. I've been treated very unfairly by this guy. Now this judge is of Mexican heritage. I'm building a wall."

What Ryan said about it: It's "the textbook definition of a racist comment."

A footnote: In an interview Sunday with ABC's George Stephanopoulos, Ryan seemed self-aware of this pattern. Instead of hoping Tuesday was the last time he'd have to rebuke Trump, a resigned Ryan predicted that it would happen again: "It isn't the first time I've had to do it, and it won't be the last time if this continues."

Yup!

6. The Muslim ban (again)

Speaking in Manchester, N.H. June 13, Republican presidential candidate Donald Trump vowed to shut down immigration from countries "where there is a proven history of terrorism against the United States." Here are key moments from that speech. (Associated Press/Reuters)

What Trump said: In the wake of the June 12 Orlando nightclub shooting, Trump doubled down on his proposal to temporarily ban immigrants from the country, shifting his proposal from Muslims in particular to people from countries with a history of terrorism.

From The Washington Post's Jose DelReal: Trump said that he would suspend immigration "from areas of the world where there's a proven history of terrorism against the United States, Europe and our allies."

What Ryan said: Still a hard no on that.