The deep-pocketed super PAC that helped Mitt Romney bury his Republican primary opponents in negative campaigns is hoping to erase memory of those same ads as the candidate it’s supporting pivots to the general election. Politico reports Restore Our Future has scrubbed its YouTube channel of all but two spots:

The [two ads] that are left are a contrast spot about Romney and President Barack Obama and one about Romney helping a Bain official search for a teenaged daughter who’d disappeared in New York City. That spot, the best of the 2008 cycle for Romney, was made by Larry McCarthy for the campaign back then. McCarthy is now with ROF.

The super PAC removed nasty ads going after former candidates Newt Gingrich and Rick Santorum, both of whom are expected to endorse Romney soon. Both candidates launched vicious attacks on Romney, with Gingrich explicitly calling Romney “a liar” and Santorum calling the former Massachusetts governor the “ultimate flip-flopper.” Restore our Future returned fire with at least $11 million in negative ads hitting the candidates, playing an essential role in helping Romney secure the nomination.

But now that Romney is the presumed nominee and heading into the general, the super PAC backing him and its former rivals would rather have voters forget what they said about each other during the primary.

The race may be essentially over and his campaign suspended, but former GOP presidential candidate Rick Santorum appears to be in no hurry to back presumed nominee Mitt Romney. Santorum held a conference call with supporters tonight to thank them for their work and discuss his future plans.

Supporters could submit questions for the former Pennsylvania senator, and one asked if Santorum might “un-suspend” his campaign if he got enough votes in upcoming primaries. “Is there a reason why [supporters] shouldn’t vote for you still?” One asked, specifically referring to next week’s Pennsylvania primary?

Santorum didn’t say no. “Well, I would just say this. This best thing they could do is stay tuned. We really are serious about making sure that the issues that we brought up during this campaign are continued going forward.” “As far as who you vote for for…it’s really up to you as to who you support in the upcoming elections,” he said.

As for his own activities, Santorum vowed to be a “voice” in the presidential campaign, but it’s unclear for whom he’ll be speaking. “You’ll see me active and engaged,” he said, “but as far a specific presidential candidate, I haven’t had a chance yet to talk to Newt [Gingrich] or to Governor [Mitt] Romney, but we’ll be talking to both of them, and we’re going to go out and do what we think is best for our country and winning this election and making sure that we have a conservative…who will follow through with that conservative message after the election.”

Mitt Romney’s name was hardly mentioned during the entire call.

He also hinted at perhaps starting an independent grassroots organizing group, like fellow ex-candidate Herman Cain’s. “We will have a place to organize and to rally to make a difference. And we’re working on something right now about how to best make that happen,” he said. “So I would just encourage people to stay tuned,” he added.

Since Rick Santorum dropped out of the presidential race today, ThinkProgress wanted to take a look back at some of the more memorable moments from his failed bid:

– Santorum warned “Satan” is systematically attacking the U.S. with “rock concerts” and “sensuality.”

– Claimed that the Netherlands euthanizes 10 percent of its citizens.

– Argued the California universities don’t teach American history — they do, it’s a graduation requirement.

– Santorum compared marriage equality to a napkin, not a paper towel; water, not beer; tea, not basketball; a tree, not a car.

– “Friends don’t let friends use pink [bowling] balls.”

– Called Obama a “snob” for urging kids to get educated.

– Made his top issue “Enforcing Laws Against Illegal Pornography.”

– Said Obamacare would kill his special needs daughter.

–Thinks global warming is a “hoax.”

– Claimed high gas prices traveled through time to cause the recession.

– Thinks insurers should discriminate against people with pre-existing conditions.

– Took to waving around a shale rock during speeches as a visual aid for his energy policy.

– “I don’t want to make black people’s lives better” with taxpayer money (which he, of course, later qualified as “blah” people).

– He said women aren’t capable of serving in combat because there would be “emotions that are involved.”

– “I refer to global warming as not climate science, but political science.”

– He told a mother her gay son is engaging in unhealthy activity that the government should not “promote.”

- “I’m for income inequality.”

– Santorum promised to significantly reduce federal funding for food stamps, arguing that the nation’s increasing obesity rates render the program unnecessary.

– Told a sick kid not to complain about high drug costs because people blow tons of money on iPads.

– He opposes contraception, explaining that it’s a “license to do things.”

– Santorum found “it almost remarkable for a black man” to be pro-choice, saying Obama should oppose abortion because of his race.

– He told a rape victim to “make the best out of a bad situation”

– In 1994, Santorum said single moms are just “breeding more criminals.”

– He told Peurto Ricans to learn English.

– Called for selling off public lands to private sector.

Meanwhile, presumed nominee Mitt Romney moves onto the general election, likely with the help of Santorum, it’s worth remembering what Santorum has said about the former Massachusetts governor.

Now that Rick Santorum has dropped out of the presidential race, the big question is whether the runner-up with endorse presumed nominee Mitt Romney. A top aide told reporters that Santorum and Romney agreed to meet in the near future, and Romney sent out a press release praising his opponent as “an important voice in our party and in the nation.”

But as Romney pivots to the general election with Santorum’s help, it’s important to remember that the former rival leveled some serious charges against the presumed nominee that should not be forgotten. Here are Santorum’s top 10 hits on Romney:

1. LIAR: “If [Romney's health care] policy is bad, the policy is bad. And a bad policy is one thing. But lying to the American people is something else.” [National Journal]

2. “ULTIMATE FLIP-FLOPPER”: “He glosses over and doesn’t even tell the truth. … Here is a guy who is the ultimate flip-flopper running for president, and he’s attacking me for not being principled? That doesn’t wash.” [Examiner]

3. ETCH A SKETCH CANDIDATE: “One of Governor Romney’s aides today on television said that Governor Romney, after he wins the primaries, will be like an [Etch A Sketch] — you take whatever he said and you can shake it up and it will be gone, and he’s going to draw a whole new picture for the general election.” [Washington Post]

4. MIGHT AS WELL RE-ELECT OBAMA: “You win by giving people the opportunity to see a different vision for our country, not someone who’s just going to be a little different than the person in there. If they’re going to be a little different, we might as well stay with what we have instead of taking a risk of what may be the Etch A Sketch candidate for the future.” [AP]

5. OBAMACARE: “He created the blueprint for Obamacare and advocated for exactly what Obamacare is, which is a mandated health insurance program…it is exactly the Massachusetts health care plan. …He is uniquely disqualified.” [MSNBC]

6. “WORST REPUBLICAN IN THE COUNTRY”: “Pick any other Republican in the country. He is the worst Republican in the country to put up against Barack Obama.” [NBC]

7. “WEAK CANDIDATE”: “We can’t nominate such a weak candidate. I’d love to be able to get one-on-one with Gov. Romney and expose the record that would be the weakest record we could possibly put up against Barack Obama.” [Huffington Post]

8. “WALL STREET FINANCIER”: “I heard Governor Romney here called me an economic lightweight because I wasn’t a Wall Street financier like he was. Do you really believe this country wants to elect a Wall Street financier as the president of the United States? Do you think that’s the experience that we need? Someone who’s going to take and look after as he did his friends on Wall Street and bail them out at the expense of Main Street America.” [ABC]

9. BUSINESS EXPERIENCE DOESN’T MATTER: “Running a business is not the same as being president of the United States.” [CNN]

10. BAILOUT HYPOCRISY: “Governor Romney supported the bailout of Wall Street and decided not to support the bailout of Detroit. [AP]

Santorum spokesperson Hogan Gidley confirmed to reporters this afternoon that Romney called to “discuss an endorsement.” “We will see how that goes in the next couple days.”

Facing mounting pressure and the prospect of an embarrassing loss in his home state of Pennsylvania next week, Rick Santorum suspended his campaign for the presidency today.

“We made a decision over the weekend that this presidential race is over for me,” he said at a press conference in Pennsylvania moments ago. “We will suspend our campaign effective today.”

Mitt Romney will now almost certainly go on to win the nomination, though that outcome was projected by most observers after his recent victories gave him an insurmountable delegate lead. Rep. Ron Paul (R-TX) and former Speaker Newt Gingrich are still in the race, with Gingrich vowing again to stay in until he GOP convention, though they have little chance of winning any upcoming races.

Santorum did not endorse Romney or any other candidate, though there are reports that Romney and Santorum spoke on the phone.

Santorum made a name for himself on the campaign trail by peddling a series of wacky claims about gay people, women, and the role of religion in government. The former senator infamously compared same-sex marriage to inanimate objects like napkins and basketballs, promised to annul all same-sex marriages, and defended his support for Don’t Ask, Don’t Tell by arguing that gay soldiers would disrupt the military because “they’re in close quarters” with straight servicemembers.

Santorum also called President Obama a “snob” for urging kids to get educated, argued (falsely) that California universities “don’t even teach an American history course,” said President Kennedy’s speech on religion made him want to “throw up,” and said that states should be able to outlaw contraception.

Santorum pledged to preach about “the dangers of contraception in this country,” if elected president. Fortunately, the country will be spared his sermons for the foreseeable future.