This year's presidential debate moderators — Lester Holt, Martha Raddatz, Anderson Cooper and Chris Wallace — are household names. The vice-presidential debate moderator? Not yet.

So before Mike Pence and Tim Kaine face off in Virginia on Tuesday night, here are five things to know about moderator Elaine Quijano.

Firsts things first

Quijano represents two notable firsts in general-election debates: She is the first Asian American moderator and the first moderator from a digital news network, CBSN.

Quijano appears on TV, too, most notably when she anchors the Sunday edition of "CBS Weekend News." But her main gig is anchoring CBS's streaming news channel. Her selection by the staid Commission on Presidential debates — which picked PBS's Jim Lehrer eight times during an 11-debate stretch between 1992 and 2000 — is a nice hat tip to the relevance of digital news.

Her most memorable campaign report focused on Donald Trump's Hispanic supporters

Quijano traveled in the spring to border towns, where she interviewed Latinos who back GOP nominee Donald Trump — a rare breed of voter, given that the Republican presidential nominee is viewed unfavorably by three in four Hispanics.

"We don't hear from them that often, so we thought it was important," Quijano said when discussing her report on "CBS This Morning" in June.

As the immigration debate continues, here's a look back at our CBSN Originals documentary, "Nuestro Amigo: Latinos for...

Posted by Elaine Quijano on Thursday, September 1, 2016

She has been MIA on Twitter for more than a month

Quijano is following a precedent set by Holt and staying off Twitter in the run-up to her night in the moderator's seat. The difference is that Holt isn't an avid Twitter user, but Quijano often tweets multiple times per day.

Maybe Quijano has been using those spare seconds to write debate questions. Or maybe she is just doing the prudent thing and avoiding any messages that could be used by candidates who are always on the lookout for bias.

She has a lot of experience — just not debate experience

Quijano, 42, used to be a White House correspondent for CNN. She also has covered the Pentagon and the Supreme Court, as well as major stories such as the 9/11 terrorist attacks, the Sandy Hook elementary school shooting, the Boston Marathon bombing and Hurricane Sandy. She has reported from Islamabad, Kabul and Kuwait.

These assignments have given Quijano firsthand exposure to many of the topics that could come up during a debate, including terrorism, gun control and the Supreme Court vacancy. Unlike Holt, Cooper, Raddatz and Wallace, however, Quijano has not moderated a debate before.

One non-obvious issue Quijano might raise: PTSD

In 2011, Quijano reported on a White House policy that excludes families of military veterans who commit suicide from receiving condolence letters from the president.

Now mental health is back in the news after Trump told a veterans' group on Monday that "when people come back from war and combat, they see things that maybe a lot of the folks in this room have seen many times over, and you're strong and you can handle it, but a lot of people can't handle it." Vice President Biden quickly condemned the remark, saying it showed Trump is "out of touch."

Kaine and Pence have sons in the Marine Corps. It would be no surprise for Quijano to ask a question about post-traumatic stress disorder.