Deirdre Walsh

Updated at 7:58 p.m. ET

Senate Majority Leader Mitch McConnell reiterated his plans to move forward on President Trump's nominee to fill the vacancy on the U.S. Supreme Court left by the death of Justice Ruth Bader Ginsburg.

"The Senate will vote on this nomination this year," McConnell, R-Ky., said Monday on the Senate floor. He didn't say whether the vote would come before the election, or in a lame duck-session of Congress that occurs after the November election and before the start of a new session in 2021.

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.

Updated at 1:45 a.m. ET Friday

The picnic that is political life in Washington seldom encounters a skunk of the magnitude of John Bolton.

He was a centerpiece of the establishment, and now President Trump and Republicans have rejected him as a turncoat.

Democrats, never fond of his worldview, now despise him as never before.

President Trump on Wednesday vetoed a resolution that would have suppressed his ability to unilaterally take military action against Iran, calling the bipartisan bill an "insulting" attack on his presidential powers.

"This was a very insulting resolution, introduced by Democrats as part of a strategy to win an election on November 3 by dividing the Republican Party. The few Republicans who voted for it played right into their hands," the president said in a statement.

Senate Majority Leader Mitch McConnell announced the full Senate will not plan to return to the Capitol before May 4 — a delay from a planned return next Monday.

McConnell said the decision to change the schedule was made "following the advice of health experts" and in consultation with Senate Minority Leader Chuck Schumer.

McConnell, R-Ky., stressed that Congress continues to work remotely to respond to the economic impact of the coronavirus.

Updated at 6:44 p.m. ET

Congress is working to get more money to those impacted by the coronavirus pandemic but negotiations over the size and scope of another round of emergency funding could delay quick action this week.

House Speaker Nancy Pelosi says she will create a bipartisan House Select Committee on the Coronavirus Crisis to be chaired by Rep. James Clyburn, D-S.C.

The committee will focus on transparency, accountability and oversight and will have the power to issue subpoenas, she said on a call with reporters.

"This select committee is about the here and now," Pelosi said. "We have to work together to get through this, but as we do, we don't want to make more mistakes."

Updated at 8:50 p.m. ET

In the midst of Senate negotiations on a massive stimulus package in response to the coronavirus pandemic, House Democrats have drafted their own counterproposal titled the Take Responsibility for Workers and Families Act.

In a statement, House Speaker Nancy Pelosi said the Republican bill before the Senate puts "corporations first, not workers and families."

Updated at 5:25 a.m. ET on Friday

Speaker Nancy Pelosi, D-Calif., was unable to reach a deal late Thursday on a package of measures to address the coronavirus pandemic amid pushback from the top House Republican that the bill "comes up short."

Negotiations were set to resume on Friday on the legislation, which does not include an emergency payroll tax cut — something that President Trump has been pressing for Congress to pass but that Democrats and some Republicans have rejected.

Updated at 11:32 p.m. ET

Congressional Democrats unveiled a measure for a legislative stimulus package aimed at mitigating the economic damage stemming from the coronavirus.

Updated at 9:04 a.m. ET

Joe Biden continued his impressive string of primary wins, easily besting Vermont Sen. Bernie Sanders in Michigan, Missouri, Mississippi and Idaho on Tuesday.

With a big delegate lead, he solidified his position as the favorite for his party's nomination to face President Trump in November. Sanders was the projected winner in North Dakota while votes were still being counted in Washington.

Senate Majority Leader Mitch McConnell, R-Ky., condemned the top Senate Democrat for comments he made on the steps of the Supreme Court on Wednesday calling out Supreme Court Justices Brett Kavanaugh and Neil Gorsuch.

Appearing before a crowd of abortion-rights demonstrators, Schumer, D-N.Y., referred to the court's two Trump appointees, saying: "You have unleashed the whirlwind and you will pay the price. You won't know what hit you if you go forward with these awful decisions."

Momentum and timing matter in politics — and both helped former Vice President Joe Biden mount a comeback against Vermont Sen. Bernie Sanders, who went into Super Tuesday with front-runner status after significant wins in early states.

After poor showings in some opening contests, Biden's campaign was seen by many as left for dead. On Tuesday he emerged as the chief alternative to Sanders.

The Democratic presidential race at one point had almost two dozen candidates, but now it's essentially a contest between two men representing dueling ideological poles of the party.

Updated at 8:48 p.m. ET

Vermont Sen. Bernie Sanders has won the Nevada caucuses, according to an Associated Press projection.

The win gives Sanders victories in two of the first three states to weigh in on the 2020 Democratic presidential nomination. His other win was in New Hampshire, and he also ended in a near-tie atop the still-muddled Iowa caucuses.

Rep. Alexandria Ocasio-Cortez, who gained an instant national profile when she toppled a top Democratic leader in 2018, has launched her own political action committee to boost challengers in 2020 congressional races.

The move shows the 30-year-old New York freshman's intentions to continue battling with her party's establishment.

President Trump took full advantage of the large television audience for his State of the Union speech on Tuesday to make his case for reelection in November, touting the strong economy and delighting Republicans in the room with a series of made-for-TV moments.