Deirdre Walsh

The 2020 presidential campaign heads into the fall stretch with a dizzying pace of news developments threatening to upend the contest. But NPR interviews with voters across the country around Labor Day weekend found that most are locked into their support for either President Trump or Democratic nominee Joe Biden. The small contingent of undecided voters said they are unenthusiastic about their choices.

The season for mounting challenges to incumbent lawmakers is nearly over, and the focus is shifting toward the general election. But incumbents shouldn't rest easy — it's clear that groups on the left feel emboldened by the places where they did make gains over the course of the 2020 cycle and plan to keep an eye on where else they can target their energy next.

Follow live coverage of the RNC all week at NPR.org/conventions.

President Trump's campaign was forced to deal with sudden focus on two major news stories — mounting national unrest about racial injustice after another shooting of a Black man by police in Wisconsin, and Hurricane Laura, which is threatening "unsurvivable"storm surge — on the third night of the Republican National Convention.

The second night of the Republican National Convention presented a more positive message about a second Trump term after opening night's bleak picture of rising crime, unrest and extremist policies the GOP said the Democratic ticket had in store for the country.

Kamala Harris made history with her formal nomination as the first Black woman and person of Asian descent on a major party's national ticket.

The 55-year-old California senator used much of her first prime-time address as Joe Biden's running mate to tell her own story before turning her fire on President Trump.

Former President Barack Obama, who has mostly stayed on the sidelines as Democrats blasted President Trump's policies over the past 3 1/2 years, took off the gloves and questioned Trump's fitness for the job.

After former first lady Michelle Obama's foreboding address Monday about the consequences of a second term for President Trump, and her urgent appeal that people "vote for Joe Biden like our lives depend on it," the second night of the Democratic National Convention focused on building the case for how Biden would restore a country struggling in an economic and public health crisis.

Updated at 9:10 p.m. ET

After days of delays, congressional Republicans rolled out their proposal for a fifth wave of pandemic relief aid on Monday, setting the stage for a showdown with Democrats, who say the two sides remain far apart.

The plan, which was introduced by Senate Majority Leader Mitch McConnell, R-Ky., focuses on new funding for schools and a new round of payments to Americans and allows for some additional wage replacement for unemployed workers.

Updated at 6:20 p.m. ET

The House of Representatives approved legislation Wednesday to remove statues honoring figures who were part of the Confederacy during the Civil War from the U.S. Capitol. The bill would also replace the bust of Chief Justice Roger Brooke Taney, author of the Supreme Court's 1857 Dred Scott decision denying freedom to an enslaved man, and replace it with a bust of Justice Thurgood Marshall.

Washington is racing to complete a fifth round of legislation to address the ongoing, and still surging, coronavirus pandemic in the next three weeks. The two parties and the White House are at odds over what the major pillars of the legislation should include and how much it should cost.

Senate Majority Leader Mitch McConnell, R-Ky., wants to get a bill to President Trump by Aug. 7 when Congress is scheduled to adjourn for the rest of the summer — a time when lawmakers traditionally hit the campaign trail in an election year.