The demonstration at the Lincoln Memorial was the latest in a string of school walkouts across the country, which have resulted in arrests and condemnation from some officials, and plaudits from others.
Gov. Abigail Spanberger of Virginia delivered a Democratic rebuttal to President Trump that struck the political notes her party’s leaders are aiming to press on the economy and other issues.
Abigail Spanberger, the newly elected governor of Virginia, was chosen to deliver her party’s response to President Trump’s State of the Union address.
In selecting the Virginia governor, Democrats turned to a centrist former congresswoman whose winning campaign last year showed how their party’s candidates can succeed in the Trump era.
The department said the state’s policy of granting unauthorized immigrants in-state financial aid at public colleges and universities violates federal law.
The selection of Scott Beardsley by the G.O.P.-appointed board comes after the previous president resigned under pressure from the Trump administration. A new Democratic-appointed board could try to overturn the choice.
While other Democrats have tried to address their party’s failings with new strategies, Abigail Spanberger in Virginia and Mikie Sherrill in New Jersey are hoping to once again tap into anger at the president.
Representative Mikie Sherrill of New Jersey pledging allegiance at a campaign event earlier this month. Ms. Sherrill sees similarities between her race for governor and her initial run for Congress.