While the 2020 general election is still three years away, potential candidates for president are positioning themselves as the opposition to Donald Trump. For former Vice President Joe Biden, he's making his opinions loud and clear.

Biden on Trump

The election of Donald Trump changed the way Washington politics worked, and shifted the direction of the United States in the process. Trump's shocking defeat of Hillary Clinton sent shock-waves throughout the world, as many were left wondering how it all happened. For Joe Biden, the former vice president had been a potential candidate for president in 2016, but decided to back out after the death of his son.

Fast forward to present day and the Trump presidency has a year in the books, with the Democrats wondering who will step up to offer a challenge [VIDEO]in 2020.

Joe Biden's name as been linked to a possible run for president, and continued to plant the seed during a February 6 interview on CNN. Joining host Jake Tapper, Biden pulled no punches when asked to elaborate on his thoughts about Donald Trump. "It’s just a disaster," Biden said. The former VP went on to accuse the president of "doing everything that Putin ever wanted," in regards to his recent attacks on the Justice Department and FBI and "sowing doubt about whether or not our justice system is fair."

Trump the joke

Not stopping there, Jake Tapper went on to press Joe Biden on Trump's recent comments [VIDEO] labeling Democrats as "Un-American" and "treasonous" for refusing to stand and applaud during his recent State of the Union address.

The White House attempted to defend the president's comments, saying they were done as a "joke" and that they weren't meant to be taken seriously. Biden was quick to fire back with a few thoughts of his own, going on to say "Let me tell you, he’s a joke."

Moving forward

According to a recent CNN poll of hypothetical 2020 general election match-ups, Joe Biden would defeat Donald Trump by a 57 percent to 40 percent margin. Vermont Sen. Bernie Sanders would also have the edge over Trump, 55 percent to 42 percent. In addition, Oprah Winfrey is also polling ahead of Trump with a 51 percent to 42 percent advantage. While it's unknown who will be running for the Democratic Party in 2020, the latest polling shows that many Americans are already looking for an alternative to the current commander in chief, despite the rhetoric coming out of the White House and conservative news outlets.