President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE on Friday compared Joe Biden Joe BidenBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Democratic groups using Bloomberg money to launch M in Spanish language ads in Florida Harris faces pivotal moment with Supreme Court battle MORE's nascent presidential campaign to his own candidacy in 2016, suggesting the former vice president would emerge from a crowded pack of Democratic contenders.

"I look at it like my race," Trump told Politico in an interview.

"If you remember, from the day I came down the escalator until the end of the primaries, I was in the number-one position," Trump added. "I was center stage every debate. And, you know, nobody came close."

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Trump did not begin the 2016 campaign at the forefront of polling but quickly rose to the top en route to securing the GOP nomination.

"It seems as if many of aren’t registering with the public," Trump said Friday. "And Biden — for whatever reason, I don’t get that — but he seems to be — you know, have some kind of a register. Whether it's name [recognition] or what. And he seems to be doing well."

Biden is one of more than 20 candidates running for the Democratic presidential nomination in 2020. The former vice president has been at or near the top of most Democratic primary polls, and leads Trump in some polling of a hypothetical matchup between the two.

Trump has been fixated on Biden since the former vice president jumped into the 2020 race a few weeks ago. Trump earlier Friday tweeted a prediction that Biden would defeat Sen. Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE (I-Vt.) for the Democratic Party's nomination, deriding the two as "SleepyCreepy Joe" and "Crazy Bernie."

Trump has previously hit Biden over his support among unionized labor, claiming that rank-and-file members prefer the current president to the former vice president.

Biden openly criticized Trump during the first few days of his campaign, lamenting that the president has hurt American values and calling him a "clown."