In Her Crisp Defense of Biden, Harris Builds a Case for Herself Vice President Kamala Harris tried to calm Democratic fears as her allies wondered what could be next for her.

The White House Brushed Off Questions About Biden’s Age. Then the Debate Happened. President Biden’s allies can no longer wave away concerns about his capacity after his unsteady performance at Thursday’s debate as worries among Democrats grow.

A Gleeful Trump, Fresh From the Debate, Rallies in Virginia A day after his falsehoods largely went unchecked amid an unsteady debate performance by President Biden, former President Donald J. Trump argued that the president was unfit for office.

There Are ‘No Conversations’ About Replacing Biden, Campaign Official Says The official also said President Biden was committed to attending the next presidential debate in September.

For Trump, the Debate Was Another Chapter in the Rewriting of Jan. 6 It was the biggest stage yet for his effort to rewrite the story of Jan. 6, 2021.

51.3 Million Viewers Tuned In for Shaky Biden and Boisterous Trump It was the smallest TV audience for a presidential debate since 2004, but CNN’s telecast was still among the highest-rated programs of the year.

Supreme Court Ruling Reflects Challenges of Jan. 6 Prosecutions In finding that prosecutors misused an obstruction law to charge rioters, the justices highlighted the lack of an established legal blueprint for addressing an attack on the foundations of democracy.

Biden and Trump Tussle Over Golf at Debate Bickering about their golf handicaps in Thursday’s presidential debate was panned as a petty exercise between two aging men trying vainly to outdo one another.

Obama Defends Biden: ‘Bad Debate Nights Happen’ The former president faced a similar crisis of confidence in his re-election campaign after a bad debate performance in 2012, and he defended his former running mate in a social media post.

Downballot Republicans Seize on Biden’s Halting Debate Performance Facing resilient Democratic incumbents, G.O.P. House and Senate nominees highlighted their opponents’ support for President Biden after he faltered in the presidential debate.

Debate and Supreme Court Rulings Bring a Dark Day for Democrats The combination of President Biden’s debate performance and adverse Supreme Court rulings left Democrats reeling and in despair with elections not far off.

Regulatory Agencies Suffered Their Latest Blow in Chevron Ruling The Supreme Court’s conservative majority has made it easier to sue agencies and get their rules struck down.

Fearful and Doubting Biden, Democrats Face an Uncertain Path Forward A range of despairing Democrats began to reconsider their nominee after his rough debate showing, but there was no agreement on how, or whether, to urge him to step off the ticket.

On Immigration, Biden Offers a Muted, Muddled Message Former President Donald J. Trump continued to spread fear of immigrants, while the president did not define any broader strategy on the issue.

Biden’s ‘Hard Night’ at Debate Surprises Voters Who Had High Expectations Poll respondents who had thought the president would perform well expressed disappointment. ‘His communication fell down,’ one voter said.

First the Debate, Then a Supreme Court Ruling: Trump’s Big 24 Hours Successive successes reinvigorated Donald Trump’s campaign a month after he became the first major party nominee convicted of a felony.

Pelosi and Other Leading Democrats React to Biden’s Debate Performance The president’s surrogates acknowledged his struggles in the debate but said that one night did not reflect his successes, or the dangers of a second Trump term.

Social Conservatives Push Trump on the G.O.P.’s Anti-Abortion Platform Leaders of the anti-abortion movement sent a letter to Donald J. Trump amid worries he may try to weaken the anti-abortion language in the party platform.

One by One, Biden’s Closest Media Allies Defect After the Debate The MSNBC host Joe Scarborough, the CNN contributor Van Jones and other pundits who have long supported the president are now urging him to drop out.

Supreme Court Ruling Could Undermine Treasury Department and I.R.S. The decision overturning a longstanding precedent is likely to spawn challenges to dozens of tax regulations.