Former President Barack Obama refused for quite some time to endorse Joe Biden, who served as his vice president for eight years.

But all of that changed last week when Obama finally came forward and endorsed Biden’s presidential campaign.

Obama released a 12-minute video on his social media platforms officially endorsing Biden now that there’s no one else running for the Democratic nomination.

After waiting to endorse Joe until every other Democratic candidate dropped out of the race, “insiders” are saying that Obama has seemed “very eager” to get started helping Biden take down President Donald Trump this November.

“He is very eager to do this,” an ex-Obama official told the New York Post. “I certainly expect President Obama to be very active.”

“The coronavirus disaster and the [federal] government’s inability to lead on it is searing in his brain…more than anything else Trump has done,” the insider explained, according to the Post. “Obama is generally heartbroken by the Donald Trump presidency.”

The Post‘s sources suggested that while Obama is prepared to take on an active role in Biden’s campaign, it is unclear what exactly that would entail.

“While COVID-19 has put an end to in-person events, President Obama can still be deployed in a number of ways to help Vice President Biden,” Democratic strategist Eric Koch told the Post, “including unlocking his massive fundraising network, continuing to be visible in online videos that get big audiences, serving as a high-profile surrogate in a wide range of media and helping unify the party to face Trump.”

The long-awaited endorsement comes after a report last year alleging that Obama warned Biden last year about making the biggest mistake of his life.

Obama apparently wasn’t sold on the idea of Biden, who served as his vice president for eight years, running for president in 2020.

“You don’t have to do this, Joe, you really don’t,” Obama told Biden before he officially launched his presidential campaign in April.

The report added:

Mr. Biden — who thinks he could have defeated Donald Trump four years ago — responded by telling Mr. Obama he could never forgive himself if he turned down a second shot at Mr. Trump.

Obama huddled with top Biden aides in March to implore they insure that the former vice president does not “damage his legacy” or “embarrass himself.”

Obama and Biden met over lunch last, where the former president urged the White House hopeful to recruit fresher faces to his campaign.

He has communicated his frustration that Mr. Biden’s closest advisers are too old and out of touch with the current political climate — urging him to include more younger aides.

Now that Biden is the presumptive Democratic nominee, he’s already narrowed down his list of potential running mates.

During an online campaign event last Wednesday, Sleepy Joe slipped up big time and said he’s coming for California Democratic Sen. Kamala Harris.

Biden said: “I’m so lucky to have you be a part of this partnership going forward. Working together, we can make a great deal of progress. … I’m coming for you, kid.”

A previous report speculated that these 3 names, among others, at the top of Biden’s shortlist:

California Democratic Sen. Kamala Harris

Massachusetts Democratic Sen. Elizabeth Warren

Minnesota Democratic Sen. Amy Klobuchar

During the Democratic primary debate last month, Biden vowed that his eventual choice of a running mate would be a woman.

After vowing to nominate a black woman to the Supreme Court, Biden then added: “Secondly, if I’m elected president, my Cabinet, my administration will look like the country, and I commit that I will, in fact, appoint a woman to be vice president. There are a number of women qualified to be president tomorrow. I would pick a woman to be my vice president.”