Sunday night's presidential debate at Washington Unviersity will be moderated by two people: Martha Raddatz of ABC News and CNN's Anderson Cooper. Following the agonizingly biased moderation from the previous two debates, will Cooper and Raddatz be more of the same?

Here are seven things you need to know about Sunday's debate moderators.

1. Barack Obama attended Raddatz's wedding. As The Daily Caller reported back in 2012, Obama attended Raddatz's wedding in 1991. The groom of the wedding, Julius Genachowski, later became the head of the Federal Communications Commission under Obama. The reports "suggests that Obama was among a close circle of fewer Harvard classmates who were personal friends of Raddatz and Genachowsk."

With that in mind...

2. Raddatz's leftist bias was egregious at the 2012 vice-presidential debate. While Vice President Joe Biden rambled incoherently, cut off Rep. Paul Ryan (R-WI) and cackled maniacally throughout the debate, Raddatz also frequently interrupted Ryan and strictly held him to a time limit. According to Fox News, Raddatz interrupted Ryan 31 times and Biden 19 times, a wide disparity that is reflective of her leftist bias.

3. Raddatz seems to have a soft spot for Hillary Clinton. Here are some examples of her fawning coverage towards Clinton, via Newsbusters:

  • Raddatz hailing Clinton as "charming, disarming and clearly ready for a fight" in the 2013 Benghazi hearing.
  • Raddatz suggesting that Clinton be called "Glam-Ma."
  • Raddatz declaring that Clinton is "cool" and "trending."

This is not exactly objective, neutral coverage.

4. Anderson Cooper is far more hostile to guests that are right of center than those that are leftists. For instance, here is how Cooper handled Univision's Jorge Ramos when he came on the program, as the Daily Wire reported:

At the end of August, Jorge Ramos–who is an amnesty hack disguised as a journalist–went on Cooper's program and declared that journalists have a "social responsibility" to skewer Trump because of their duty to stand up against "racism, discrimination, corruption, public lies, dictatorships and violations of human rights I think we have to take a stand."

Cooper didn't challenge this assertion, and instead only asked if journalists should be equally as hard on Clinton because of her lack of press conferences, to which Ramos provided a mealy-mouthed answer about how he has been "tough" with Clinton. Cooper also mischaracterized an incident in 2015 in which he claimed Trump threw Ramos out of a press conference for "asking questions about Trump’s immigration plan," according to Newsbusters, when in reality Trump kicked him out because Ramos was obnoxiously heckling him instead of waiting to be called on.

This is very similar to how Cooper treated leftist potty-mouth Bill Maher in 2011, via Mediaite:

In the segment embedded below, Maher ruthlessly slammed nearly every GOP candidate who participated in the debate this week, and even found room to deride those who did not participate, calling Sarah Palin a “ditz,” for example. He did find time to laud Ron Paul to some degree, saying that he was the one candidate that he could get behind, but for the most part he mercilessly blasted, not just every other participant, but the entire affair.

Cooper barely lifted a finger to challenge Maher's anti-GOP tirade.

Now compare the previous two examples to how he handled Florida Attorney General Pam Bondi, a Republican:

COOPER: I talked to a lot of gay and lesbian people here yesterday who are not fans of yours and who said that they thought you were being a hypocrite, that you for years have fought -- you basically gone after gay people, said that in court that gay people simply by fighting for marriage equality for trying to do harm to the people of Florida. To induce public harm, I believe was the term you used in court. Do you really think you're a champion of the gay community?

BONDI: Let me tell you. When I was sworn in as attorney general, I put my hand on the bible and was sworn to uphold the constitution of the state of Florida. That's not a law. That was voted into our state constitution by the voters of Florida. That's what I was defending. It had nothing to do -- I've never said I don't like gay people. That’s ridiculous.

COOPER: But you-- do you worry about using language accusing gay people of trying to do harm to the people of Florida when doesn't that send a message to some people who might have bad ideas in mind?

BONDI: Anderson, I don't believe gay people could do harm to the state of Florida

COOPER: But you argued that in court.

As Daily Wire editor-in-chief Ben Shapiro notes, Cooper's "asinine" grilling of Bondi goes on for several minutes.

It's also worth noting that Cooper once said of Republicans, "It's hard to talk when you’re teabagging," a crude sexual reference.

Basically, Cooper will let his leftist guests spew their agenda without much of a fight but is contentious with his guests who are right-of-center. Meanwhile, Cooper presents himself as an objective journalist.

5. Cooper has covered for the Clinton Foundation's shady practices. As the Daily Wire's Robert Kraychik reported at the end of August, Cooper cited a praiseworthy review of the Clinton Foundation, saying: "Charity Watch gave the Clinton Foundaiton an A, said that about 80% of money raised was actually spent on things as opposed to about 75 percent, which is often for many charities."

But as Kraychik noted, another charity watchdog, Charity Navigator, didn't give the Clinton Foundation a rating because of its "atypical business model." Cooper also didn't bring up the various quid pro quo deals that seemed to occur between the State Department and the Clinton Foundation.

6. Cooper also seems to have a soft spot for Clinton. Back in June 2005, Cooper hailed Clinton as the "queen of compromise."

"Most Americans of course, stand stubbornly in the middle, as has Clinton, at least for the four years she’s been in the Senate," Cooper said. "She’s lost the vast right-wing conspiracy rap, changing into a queen of compromise, eager to reach across the aisle – a successful strategy so far."

7. Cooper and Raddatz are reportedly butting heads about their roles as debate moderators. As the Daily Wire has previously reported, Cooper and Raddatz are feuding over who "should handle which topic and how involved they should be in the debate as moderators" and there is an "acrimonious at best" atmosphere between the two debate moderators.

Regardless of their feuding, Trump will be facing a 3-on-1 debate challenge on Sunday, as he will have to push back against Raddatz and Cooper's slanted moderating as well as resisting taking Clinton's bait. Will he be able to pull it off?