Former President Barack Obama is handing out an endorsement of sorts.

Even though she ended her presidential campaign a month ago, Sen. Elizabeth Warren (D-Mass.) has continued to crank out plans for how she'd like the government to be run. They've continued throughout the COVID-19 pandemic and, on Monday, got a stamp of approval from Obama.

Linking to Warren's appearance on the Vox podcast The Ezra Klein Show, Obama described Warren as providing a "cogent summary of how federal policymakers should be thinking about the pandemic in the coming months." In the discussion, Warren outlined plans for protecting health care workers and stemming disease spread, federal deficit spending to save the economy, and collecting data to improve future response measures.

To some observers, it looked like an endorsement of Warren's policy agenda. And to NBC News' Mike Memoli, it looked like a wholesale endorsement for former Vice President Joe Biden's potential 2020 vice presidential pick. Kathryn Krawczyk

History has its eyes on Sen. Kamala Harris (D-Calif.) — in more ways than one.

Former Vice President Joe Biden, the presumptive Democratic presidential nominee, announced Harris as his pick to hold the position he once held under former president Barack Obama on Tuesday.

The former California attorney general is rightly being recognized as the first Black woman to sit on a major political party's national ticket, but the historic nature of Harris' position contains multitudes.

To start, Harris is the first person with Indian heritage to run on a national presidential ticket. Her late mother was born in India, and Harris has credited her maternal grandfather, a former Indian diplomat, with helping her to appreciate the "importance of democracy and a government that represents the people — all the people,” Politico reports.

Harris's nomination also marks the first time a major nominee has graduated from an HBCU, a.k.a Historically Black Colleges and Universities. Harris graduated from Howard University in 1986, receiving her B.A. after studying political science and economics.

Howard University president Wayne A.I. Frederick released a statement saying the senator's nomination "represents a milestone opportunity for our democracy to acknowledge the leadership Black women have always exhibited, but has too often been ignored.”

Harris went on to attend the University of California, Hastings where she received her J.D., making her the first person to sit on the Democratic ticket in over 35 years who did not attend an Ivy League school.

If Harris and Biden succeed in ousting President Trump from office, Harris will also hold the honor of being the first female and the first Asian American to be elected to national office, but we'll save that conversation for another day. Marianne Dodson

The old boss approves.

Former President Barack Obama on Tuesday said his old right hand man and the presumptive Democratic nominee, former Vice President Joe Biden, "nailed" his running mate selection. Earlier in the day, Biden tapped Sen. Kamala Harris (D-Calif.) as his running mate in the race against President Trump, and Obama said he "couldn't be more thrilled," describing Harris as "an ideal partner" for Biden.

Not only has Obama known Harris for many years, he's been an active supporter of her political career for a while. Back in 2010, when Harris was running for California attorney general, she was the only down-ballot Democrat the then-president raised funds for, Politico reported at the time. Tim O'Donnell

There's a long way to go before California Gov. Gavin Newsom (D) has to seriously contemplate filling Sen. Kamala Harris' (D-Calif.) seat in the upper chamber. After all, the presumptive Democratic vice presidential nominee, who was selected Tuesday as former Vice President Joe Biden's running mate, will need to be part of a victory in November's general election before her Senate seat actually opens. But that hasn't stopped some speculation about who could replace her.

One of the candidates people are talking about is Harris' fellow vice presidential contender, Rep. Karen Bass (D-Calif.), who has also been touted as a potential replacement for House Speaker Nancy Pelosi (D-Calif.) one day. Bass appears to have been seriously considered for the Biden ticket, but it seems unlikely that was her last chance to move into an even more prominent role.

A few other names have been floated as possible Harris replacements, including Bass' colleagues in the House, Reps. Barbara Lee (D-Calif.) and Katie Porter (D-Calif.). Tim O'Donnell

Joe Biden just announced his running mate choice: Sen. Kamala Harris of California. That means Harris, if she can govern well, could be the leader of both the Democratic Party and the country through 2030. If she can't, she might well be the last democratically-elected vice president in American history.

Biden is the heavy favorite against Trump this year. Given his age and his track record of working closely with President Obama when he was vice president, Harris will presumably play a significant role in major governing decisions. It's unpopular for the media to talk about, but there's a decent chance she would need to step in before Biden's term is up. What's more, there is a reasonable chance that Biden would choose not to run for re-election in 2024. If so, Harris would be the overwhelming favorite to run in his place.

The stakes could hardly be higher. Donald Trump is blatantly trying to steal the 2020 election, and the next Republican candidate will very likely try the same trick. A Biden administration would have four years, and perhaps another four or eight under a Harris administration, to address the pandemic, rebuild the shattered economy and federal government, root out Trump's gangrenous corruption, and fortify America's democratic institutions. If Biden and Harris instead muddle through letting everything fester, as happened under the Obama administration, the next would-be authoritarian probably won't be as incompetent as Trump. Let's hope they seize the moment. Ryan Cooper

Just moments after Sen. Kamala Harris (D-Calif.) was announced as Joe Biden's vice presidential pick, the Trump campaign jumped in to disparage her.

Dubbing her "Phony Kamala," the Trump campaign sought to paint Harris as inconsistent and shady. Most questionably, the statement condemns her as part of the "radical mob" that purportedly pushes "the left's radical manifesto." While, yes, Harris has championed several progressive causes the Trump administration would likely deem "radical socialism," among Democrats, she's considered fairly moderate.

In claiming Harris "will abandon her own morals," the Trump campaign pointed to the infamous Biden-Harris debate clash, in which Harris criticized Biden's previous stance on busing and criticized him for working with segregationists. Summer Meza

The pick is in.

After months of anticipation, former Vice President Joe Biden, the presumptive Democratic presidential nominee, selected Sen. Kamala Harris (D-Calif.) as his running mate in the race against President Trump, his campaign announced in a text message to supporters Tuesday. Biden also tweeted the news.

Harris was long considered a favorite for the the role, and the senator wound up beating out a host of other contenders including, but not limited to, Sen. Elizabeth Warren (D-Mass.), Rep. Karen Bass (D-Calif.), Michigan Gov. Gretchen Whitmer (D), and former National Security Adviser Susan Rice, who had emerged as another top choice in recent weeks.

Biden and Harris clashed during some of the Democratic primary debates, but the two have reportedly enjoyed a good relationship before and since then.

Harris is the first Black woman and first Indian woman to appear on a major party's presidential ticket. Tim O'Donnell