Former Vice President Joe Biden Joe BidenPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Hillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Fox News poll: Biden ahead of Trump in Nevada, Pennsylvania and Ohio MORE will travel to Iowa for the second time as a 2020 presidential contender on Tuesday, overlapping with President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE’s visit to the Hawkeye State.

Although the two men are not expected to meet face-to-face, their dueling campaign stops are drawing attention as a possible preview of the 2020 general election.

Biden will make stops in Ottumwa, Mount Pleasant and Davenport on Tuesday, and will travel to Clinton on Wednesday.

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Meanwhile, Trump on Tuesday will travel to Council Bluffs to tour the Southwest Iowa Renewable Energy facility and tout his administration’s agriculture policies.

The president will then attend a fundraiser for the Iowa Republican Party in West Des Moines.

Trump has repeatedly taken aim at Biden, branding him as “Sleepy Joe,” and predicting that he will be the 2020 Democratic nominee.

The president even criticized the former vice president during a trip to Japan last month.

Trump’s apparent focus on Biden has led many to believe he is worried about the former vice president's front-runner status in the Democratic field.

A Des Moines Register poll released last week showed Biden leading the Democratic pack in the state with 24 percent of likely Iowa caucusgoers, followed by Sen. Bernie Sanders Bernie SandersThe Hill's Campaign Report: Trump faces backlash after not committing to peaceful transition of power Bernie Sanders: 'This is an election between Donald Trump and democracy' The Hill's 12:30 Report: Trump stokes fears over November election outcome MORE (I-Vt.) at 16 percent, and Sen. Elizabeth Warren Elizabeth WarrenHillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns On The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline Democratic senators ask inspector general to investigate IRS use of location tracking service MORE (D-Mass.) at 15 percent.

Trump is also facing less-than-favorable approval ratings in the state that he won by nearly 10 points in 2016.

A recent survey from Morning Consult shows Trump’s approval rating at 42 percent in the state, while his disapproval rating sits at 54 percent.

The state is crucial to both men, given it's the first contest in the Democratic Party's nominating process, and is a state that Trump flipped from blue to red in 2016.

The twin visits come after 2020 Democratic hopefuls descended on the state last weekend for the Iowa Democratic Party’s annual Hall of Fame celebration.

Biden was notably absent from the gathering, citing his granddaughter’s high school graduation.

The candidates took opportunities to indirectly criticize Biden’s campaign strategy, warning that it could lead to another four years of the Trump administration.

The candidates took thinly veiled shots at Biden's "middle-ground strategy," his ties to big donors, and his recent reversal on the Hyde Amendment, which blocks federal money from going toward abortions except to save the life of the woman, or if the pregnancy arises from incest or rape.

Andrew Yang Andrew YangDoctor who allegedly assaulted Evelyn Yang arrested on federal charges The Hill's Campaign Report: Biden weighs in on police shootings | Who's moderating the debates | Trump trails in post-convention polls Buttigieg launches his own podcast MORE was the only candidate to mention Biden by name, joking that he "must really not like to travel."