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Democratic presidential candidate Joe Biden speaks during a campaign event in Council Bluffs, Iowa, Saturday. Photo: Joshua Lott/Getty Images

Democratic presidential candidate Joe Biden took aim at President Trump and the impact of his tariffs on Iowa farmers, as he launched an eight-day "No Malarkey" barnstorm bus tour of the state Saturday.

We can overcome four years of Donald Trump, but eight years will literally, literally begin to change the character of this nation, and we cannot let that happen."

The big picture: The former vice president's poll numbers have slipped in Iowa. But Biden's aides denied to AP that his tour is a "reset," saying the goal is "to drive home his potential strengths with Democratic voters who collective cite Trump’s defeat as their top priority."

What they're saying: Bobbie Moore, a Democratic Party volunteer and Biden supporter, acknowledged to AP that the crowd of a few hundred that Biden drew Saturday "isn’t one-10th of what was here for Pete" Buttigieg days ago.

  • Former Iowa Gov. Tom Vilsack and other Biden supporters say his appeal is "wider demographically and geographically than other leading candidates" and they believe Iowa’s "growing minority population" and rural areas could prove to be pivotal in the caucus vote, according to AP.

Go deeper:

Go deeper

4 mins ago - Politics & Policy

Rail's big moment is arriving

Illustration: Sarah Grillo/Axios

Passenger rail could be the big winner if Congress moves ahead with President Biden's ambitious infrastructure plan.

Why it matters: There's long been bipartisan support for rebuilding America's crumbling infrastructure, but under Biden, the focus has shifted to sustainable projects that fulfill both his climate and equity goals, such as rail transit.

Scoop: Border officials project 13,000 child migrants in May

The "El Chaparral" border crossing at Tijuana. Photo: Stringer/Picture Alliance via Getty Images

A Customs and Border Protection staffer told top administration officials Thursday the agency is projecting a peak of 13,000 unaccompanied children crossing the border in May, sources directly familiar with the discussion told Axios.

Why it matters: That projection would exceed the height of the 2019 crisis, which led to the infamous "kids-in-cages" disaster. It also underscores a rapidly escalating crisis for the Biden administration.

9 hours ago - World

U.S. strikes Iran-backed militia facilities in Syria

President Biden at the Pentagon on Feb. 10. Photo: Alex Brandon - Pool/Getty Images

The United States on Thursday carried out an airstrike against facilities in Syria linked to an Iran-backed militia group, the Pentagon announced.

The state of play: The strike, approved by President Biden, comes "in response to recent attacks against American and Coalition personnel in Iraq, and to ongoing threats to those personnel," Pentagon press secretary John Kirby said in a statement.