DES MOINES, Iowa (AP) — Former Vice President Joe Biden and Montana Gov. Steve Bullock opened the Iowa State Fair’s 2020 presidential blitz on Thursday by blistering President Donald Trump and promising to push new gun restrictions.

“I believe everything the president’s said and done encourages white supremacists,” Biden said as Trump continued to take criticism for his handling of back-to-back mass shootings. One of the shooters is believed to have written a racist screed echoing some of Trump’s incendiary language about immigrants.

Bullock said Trump’s rhetoric and behavior — attacking his critics on the day he traveled to ostensibly console victims’ families in El Paso, Texas, and Dayton, Ohio — are beneath the office he holds.

“The lies and the statements that divide us by race, gender, geography — we expect more out of our preschoolers now than we do the president of the United States,” Bullock said.

Biden and Bullock are the first of more than 20 candidates — nearly all Democrats — who will speak at the Iowa fairgrounds over the coming days. It’s a rite of passage for would-be presidents, and for Democrats it highlights their challenges in a state like Iowa, a presidential battleground that mixes cultural conservatives and farm country, liberal college towns and plenty of swing voters in between.

Trump won Iowa comfortably in 2016 after President Barack Obama, with Biden as his running mate, won the state twice. The typical Democratic caucus electorate, meanwhile, leans far more liberal than the general electorate.

Biden and Bullock promised to compete both for caucus votes and for the state in November.

“If we can’t win back places we lost, ... if we can’t give people a reason to vote for us and not just against him, Donald Trump will win again,” Bullock said. “The path to victory doesn’t just go through the coasts.”

But first, the caucus is critical for both men — for different reasons.

Biden, as the national polling leader since he entered the race, needs to demonstrate the strength of a front-runner. Bullock, meanwhile, is a longshot looking for a slow, steady rise from a state where he has family connections and is comfortable selling his Montana record.

Bullock faces an uphill battle in part because of Biden’s standing: Both men hail from the more moderate-to-liberal core of the party, warning that a progressive lurch could help re-elect Trump. But the 53-year-old governor is dwarfed by the universal name recognition of the 76-year-old former vice president.

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