House Speaker Kevin McCarthy is a man who stays in motion — enthusiastically greeting tourists at the Capitol, dashing overseas last week to the G7 summit of industrial world leaders, and raising funds back home to elect fellow Republicans to the House majority.

But beneath the whirlwind of activity is a stubborn standstill, an imbalance of power between the far-right Republicans who hoisted McCarthy to the speaker’s role yet threaten his own ability to lead the House.

It’s a political standoff that will be tested anew as the House returns this week from a long summer recess and McCarthy faces a collision course of difficult challenges — seeking to avoid a government shutdown, support Ukraine in the war and launch an impeachment inquiry into President Joe Biden.

“They’ve got some really heavy lifting ahead,” said the No. 2 Republican in the Senate, John Thune, of South Dakota.

McCarthy, of California, is going to “have his hands full trying to figure out how to navigate and execute,” he said.

Congress has been here before, as has McCarthy in his nearly two decades in office, but the stakes are ever higher, with Republicans powered by an increasingly hard-right faction that is refusing to allow business as usual in Washington.

With former President Donald Trump’s backing, McCarthy’s right-flank pushed him into the speaker’s office at the start of the year only after he agreed to a long list of conservative demands — including the ability to call a quick vote to “vacate the chair” and remove him from office.

That threat of an abrupt ouster hovers over McCarthy’s every move, especially now.

To start, Congress faces a deadline to fund the government by the end of the month, or risk a potentially devastating federal shutdown. There are just 11 working days for Congress to act once the House resumes Tuesday.

McCarthy and his team are pitching lawmakers on a stopgap funding bill, through Nov. 1, to keep the government running under a 30-day continuing resolution, or CR, according to a leadership aide granted anonymity to discuss the private talks.

But as McCarthy convenes lawmakers for a private huddle, even the temporary funding is expected to run into opposition from his right flank.

Facing a backlash from conservatives who want to slash government funding, McCarthy may be able to ease the way by turning to another hard-right priority, launching a Biden impeachment inquiry over the business dealings of the president’s son, Hunter Biden.

X, the social media platform formerly known as Twitter, has threatened to sue a group of independent researchers whose research documented an increase in hate speech on the site since it was purchased last year by Elon Musk.

An attorney representing the social media site wrote to the Center for Countering Digital Hate on July 20 threatening legal action over the nonprofit’s research into hate speech and content moderation. The letter alleged that CCDH’s research publications seem intended “to harm Twitter’s business by driving advertisers away from the platform with incendiary claims.”

Musk is a self-professed free speech absolutist who has welcomed back white supremacists and election deniers to the platform, which he renamed X earlier this month. But the billionaire has at times proven sensitive about critical speech directed at him or his companies.

The center is a nonprofit with offices in the U.S. and United Kingdom. It regularly publishes reports on hate speech, extremism or harmful behavior on social media platforms like X, TikTok or Facebook.

The organization has published several reports critical of Musk’s leadership, detailing an increase in anti-LGBTQ hate speech as well as climate misinformation since his purchase. The letter from X’s attorney cited one specific report from June that found the platform failed to remove neo-Nazi and anti-LGBTQ content from verified users that violated the platform’s rules.

In the letter, attorney Alex Spiro questioned the expertise of the researchers and accused the center of trying to harm X’s reputation. The letter also suggested, without evidence, that the center received funds from some of X’s competitors, even though the center has also published critical reports about TikTok, Facebook and other large platforms.

“CCDH intends to harm Twitter’s business by driving advertisers away from the platform with incendiary claims,” Spiro wrote, using the platform’s former name.

Imran Ahmed, the center’s founder and CEO, told the AP on Monday that his group has never received a similar response from any tech company, despite a history of studying the relationship between social media, hate speech and extremism. He said that typically, the targets of the center’s criticism have responded by defending their work or promising to address any problems that have been identified.

A federal judge ruled on Friday that nearly all of North Carolina’s revised 12-week abortion law scheduled to begin this weekend can take effect, while temporarily blocking one rule that doctors feared could expose them to criminal penalties.

The decision by U.S. District Judge Catherine Eagles sets aside that rule but allows the law’s remaining provisions to begin on Saturday while litigation continues.

Abortion providers had last week requested a blanket order halting all of the July 1 restrictions pending their court challenge. Planned Parenthood South Atlantic and a physician said several sections in the newly revised law were so vague and seemingly contradictory that doctors could unintentionally break the law, leaving them unable to care for women seeking legal abortions.

But the Republican-controlled General Assembly passed legislation this week revising or repealing nearly all of the challenged provisions, making arguments against most of them moot. Among other things, the lawmakers clarified that medication abortions will be legal in nearly all cases through 12 weeks, and that a lawful abortion remains an exception to North Carolina’s fetal homicide statute.

Eagles, who was nominated by former President Barack Obama, had said in court that it would be overly broad to block enforcement of the entire law. Instead, she directed that for at least the next two weeks, the state cannot enforce a rule saying doctors must document the existence of a pregnancy within the uterus before conducting a medication abortion.

The abortion providers’ lawyers argued that the language raised questions about whether abortion pills can be dispensed when it’s too early in a pregnancy to locate an embryo using an ultrasound — subjecting a provider to potentially violating the law.