Former ambassador William Taylor was escorted by US Capitol Police as he arrived to testify before House committees on Tuesday.

Read the Ukraine envoy’s opening statement to impeachment investigators

In a lengthy opening statement, US envoy William Taylor provided House lawmakers with a detailed new account of the quid pro quo central to the impeachment probe into President Trump.

The New York Times op-ed column described President Trump’s leadership style as ‘‘impetuous, adversarial, petty, and ineffective.’’

Political Notebook

Anonymous author of Trump ‘resistance’ op-ed to publish a tell-all book

The book, titled ‘‘A Warning,’’ is being promoted as ‘‘an unprecedented behind-the-scenes portrait of the Trump presidency’’ that expands upon the Times column, which ricocheted around the world and stoked the president’s rage because of its devastating portrayal of Donald Trump in office.

(FILES) In this file photo taken on September 06, 2018 The New York Times building is seen on September 6, 2018 in New York. - Protecting a potentially vulnerable whistleblower versus the public's need to know: the New York Times publication of information on the man whose complaint led to an impeachment inquiry into US President Donald Trump has sparked controversy and debate. Lawyers for the whistleblower have deemed those revelations to be dangerous for their client, both personally and professionally. Calls to cancel subscriptions to the Times, circulated under the hashtag #CancelNYT, have proliferated on social media, where some have demanded the resignation of executive editor Dean Baquet. (Photo by ANGELA WEISS / AFP)ANGELA WEISS/AFP/Getty Images

Anonymous NYT op-ed writer to publish a tell-all book

The author of an anonymous column in 2018, who was identified as a senior Trump administration official acting as part of the ‘‘resistance’’ inside the government, has written a tell-all book to be published next month.

A voter helds her sticker in the air after casting her vote at a polling station in the South End.

Watch live: Boston City Council debate hosted by The Boston Globe, WBUR, and UMass Boston

Eight candidates running for at-large Boston City Council are meeting for a debate on Tuesday.

Ambassador William Taylor.

US envoy testifies that Trump linked military aid to Ukraine to investigations of Democrats

William Taylor told House lawmakers Tuesday that President Trump held back military aid for Ukraine unless the country agreed to investigate Democrats and a company linked to Joe Biden’s family, providing legislators with a detailed new account of the quid pro quo central to the impeachment probe.

President Trump.

President Trump compares impeachment to ‘lynching’

President Trump said on Twitter Tuesday morning that he is the victim of a “lynching,” comparing the impeachment process to the brutal killings of thousands of African Americans.

Jimmy Carter

Jimmy Carter hospitalized after fall at Georgia home

Former President Jimmy Carter is in the hospital again after falling and fracturing his pelvis Monday evening at his home in Plains, Georgia.

FILE -- The sun sets at Trump National Doral Miami, in Doral, Fla., Sept. 9, 2016. President Donald Trump knew Democrats would criticize him for choosing his own luxury golf club in Miami for the G7 summit in June, but when he heard Republicans doing it he changed his mind. (Ilana Panich-Linsman/The New York Times)

Trump laments G-7 move from Doral after bipartisan pushback

President Trump lashed out at critics who prompted him to move the summit from his golf club in Florida, claiming he would have hosted it for free and now it will cost taxpayers ‘‘a fortune.’’

Democratic presidential candidate Rep. Tulsi Gabbard, D-Hawaii, participates in a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, 2019, in Westerville, Ohio. (AP Photo/John Minchillo)

Trump defends Democratic candidate Tulsi Gabbard in spat with Hillary Clinton

Speaking during a Cabinet meeting Monday, President Trump said Clinton and other Democrats claim everyone opposed to them is a Russian agent.

Democratic Presidential candidate Sen. Elizabeth Warren at a Warren Indianola Town Hall speaks to journalists at Simpson College in Indianola, Iowa, on Sunday October 20. MUST CREDIT: Washington Post photo by Melina Mara

Warren releases education plan that would boost funding for public schools and end it for expanding charter schools

The Massachusetts senator and Democratic presidential candidate also wants to eliminate high-stakes testing and federal funding for charter schools.

Senator Mitt Romney of Utah, former governor of Massachusetts.

Mitt Romney says he’s behind ‘Pierre Delecto’ Twitter account

Senator Mitt Romney admitted he was responsible for a Twitter account he uses to covertly monitor political discourse and occasionally defend himself.

Brookline, MA 10/20/19 From left, the six declared candidates for the 4th Congressional seat are: Jesse Mermell (cq), Jake Auchincloss (cq), Ihssane Leckey (cq), Becky Walker Grossman (cq), Dave Cavell (cq), and Alan Khazei (cq). State Treasurer Deb Goldberg (cq) hosts the Brookline Democratic Town Committee. Photo by Pat Greenhouse/Globe Staff Topic: 21FourthDistrict Reporter: John Hilliard

Candidates for Joe Kennedy’s House seat make cases to voters in Brookline

The six Democrats running to succeed Kennedy appeared together for the first time Sunday, making the case for their campaigns while sharing the goal of helping defeat President Trump next year.

Senator Elizabeth Warren, shown during a rally Friday in Norfolk, Va., said Sunday she will release a plan in a “few weeks” laying out how she would pay for her ambitious health care proposal.

Elizabeth Warren says she’ll release plan in ‘a few weeks’ on how to pay for Medicare for All

The Democratic presidential candidate came under fire at last week’s debate for being vague about how she would pay for a government-funded universal health care system.

Acting White House Chief of Staff Mick Mulvaney addresses a news conference at the White House in Washington, Oct. 17, 2019. Mulvaney tried again on Oct. 20 to back off assertions he made to reporters last week that the Trump administration had held up an aid package to Ukraine because the president wanted the country to investigate Democrats, acknowledging he did not have a “perfect press conference.” (Leigh Vogel/The New York Times)

Mick Mulvaney struggles to explain his comments on Ukraine during ‘Fox News Sunday’ appearance

The acting White House chief of staff tried again to back off assertions he made to reporters last week, acknowledging he did not have a “perfect press conference.”

House Speaker Nancy Pelosi of Calif., is followed by reporters as she walks on Capitol Hill in Washington, Thursday, Oct. 17, 2019, near the area where U.S. Ambassador to the European Union Gordon Sondland is being interviewed as part of the impeachment inquiry. (AP Photo/Susan Walsh)

Pelosi leads lawmakers in surprise visit to Jordan amid Syria crisis

The visit by Nancy Pelosi and other legislators comes after bipartisan criticism of President Trump for his decision to withdraw the bulk of US troops from northern Syria, clearing the way for Turkey’s offensive against Kurdish groups.

(FILES) This file photo taken on April 03, 2018 shows Trump National Doral sign of the golf resort owned by U.S. President Donald Trump's company in Miami, Florida on April 3, 2018. - US President Donald Trump said on Saturday the next G7 summit will not be at one of his own Florida golf clubs, reversing a decision that had sparked corruption accusations. (Photo by Michele Eve Sandberg / AFP) (Photo by MICHELE EVE SANDBERG/AFP via Getty Images)

Trump was ‘honestly surprised’ by degree of criticism of his G-7 summit decision, Mulvaney says

President Trump reversed himself Saturday night, in the face of withering criticism about his decision to host next year’s G-7 meeting at his own Florida resort. Acting Chief of Staff Mick Mulvaney on Sunday said the Trump was ‘‘honestly surprised at the level of pushback.’’

PORTSMOUTH, OH - SEPTEMBER 24, 2019: Shawn Hanshaw embraces his girlfriend at their home on the Eastside of Portsmouth, OH on September 24, 2019. The opioid crisis hits home with the couple, Shawn has been trying to help his girlfriend kick her heroin and fentanyl addiction. The woman, 23, who asked not to be identified, said he has been struggling with her addiction for four years and has lost both her children in the process. She said her mother used drugs and she started herself when she was eighteen. She injects the drugs into her neck because it is easier. (Craig F. Walker/Globe Staff) section: National reporter:

Here, the opioid crisis is bigger than politics. As rehab centers replace pill mills, an Ohio River city fights back

Once dubbed America’s Pill Mill, an Ohio River city hits the gym and fights back, proving that the opioid crisis is bigger than politics

PORTSMOUTH, OH - SEPTEMBER 24, 2019: people flock to the Dari Creme on 2nd Street in Portsmouth, OH on September 24, 2019. Owner Austin Born, 26, said he is the third generation in the family business, his grandfather opened the ice-cream stand in 1955. (Craig F. Walker/Globe Staff) section: National reporter:

Scenes from the battleground: Ohio

The Globe dispatched reporters and photographers all over four crucial battleground states to seek the stories of people and communities and explore what may have changed for them since the last election.

Shawn Hanshaw embraced his girlfriend at their home on in Portsmouth, Ohio.

Here, the opioid crisis is bigger than politics. As rehab centers replace pill mills, an Ohio River city fights back

The scars from Portsmouth’s illegal pill mills run deep. When it seemed help wasn’t coming, an Army veteran and a group of fitness instructors, rehab counselors, and businesspeople decided to try a new strategy.

Shawn Hanshaw embraced his girlfriend at their home in Portsmouth, Ohio.

Share your thoughts: An Ohio River town fought back after feeling abandoned as rehab centers replaced pill mills

The scars from Portsmouth’s illegal pill mills run deep. When it seemed help wasn’t coming, an Army veteran and a group of fitness instructors, rehab counselors, and businessmen decided to try a new strategy.

Track the candidates for president

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2019/02/08/BostonGlobe.com/Politics/Images/CadCollagever2.jpg Tracker: Who’s running for president in 2020?

The 2020 presidential election is still a ways off, but you’re forgiven if you feel like election season is already upon us. Track the candidates here.

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