Good Friday morning. Here are some of the stories making news in Washington and politics today.

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• President Trump declared that he would accept Russia’s help on a campaign if it were offered again, saying it would be no different than meeting with the queen of England. Republicans joined Democrats in condemning his willingness to collaborate with a hostile foreign power.

• In the first six months of the 2020 campaign, Mayor Pete Buttigieg and Senator Elizabeth Warren have demonstrated an innate understanding of the value of viral moments and nonstop exposure that drive politics in the Trump era. And it’s worked to their advantage.

• Interviews across Iowa indicate that Joe Biden’s early lead comes from familiarity, nostalgia for the Obama years and strategic calculations about who can win. But on the ground, there are signs that his lead in the state is fragile.