Hillary Clinton did not directly offer an endorsement to the former Vice President Joe Biden, but said that his path to the 2020 nomination looks similar to hers back in 2016.

“What Joe’s victories on Super Tuesday showed is that he is building the kind of coalition that I had basically,” Clinton, who lost the 2016 general election to Donald Trump, said in an interview with CNN’s “Fareed Zakaria GPS” that aired Sunday, March 8.

“It’s a broad-based coalition,” she added. “I finished, you know, most of the work I needed to do for the nomination on Super Tuesday, and then it kind of lingered on. And I think Joe is on track to doing exactly the same thing: putting together a coalition of voters who are energized.”

Former rivals and Democratic insiders threw endorsements behind the former vice president just before Super Tuesday, which brought him victory in a swath of states against his main rival Sen. Bernie Sanders (I-Vt.).

After Biden dominated Super Tuesday, Clinton sang his praises, describing his successes as “very exciting.”

“He had so much energy and what he had to say was, you know, really enthusiastic and positive and about what he was going to do and who he was, and the people of South Carolina, obviously, rewarded that. And then, that kind of set off this momentum. And it carried him,” she said of Biden during an appearance on “The Tonight Show with  Jimmy Fallon” on Wednesday.

However, the former vice president is facing mounting related-health concerns following his series of mental errors while on campaign trail. During a speech on Saturday in St. Louis, Missouri, Biden described himself as an “O’Biden Bama” Democrat, prompting President Trump to jokingly take Biden’s remarks as a mangled endorsement.

Some doctors have  suggested that Biden “might need” to undergo a cognitive test and former President Obama’s longtime physician saying that Biden is “not a healthy guy.”

“He’s not in bad shape for his age, but I wouldn’t say he’s in outstanding health,” Dr. David Scheiner said last year, after reading partial medical records. “Could I guarantee he won’t have issues for the next four years? He has a lot of issues that are just sort of sitting there.”

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