Former President Barack Obama, along with Michelle Obama, the former first lady, broke ground on his presidential center on the South Side of Chicago. The project is estimated to cost $830 million and expected to take four years to build.

Boris Johnson, the prime minister of Britain, asked motorists to fill up only when they needed to, as a dearth of truck drivers has led to delayed deliveries of fuel and long lines at gas stations across the country.

Robert Aaron Long, who faces death penalty for a shooting rampage at a string of spas in the Atlanta area, pleaded not guilty to four murder charges. He had previously pleaded guilty to other charges in Cherokee County, where the shooting spree began.

Defense Secretary Lloyd J. Austin III and Gen. Mark A. Milley, the chairman of the Joint Chiefs of Staff, face questions by the Senate Armed Services Committee on the military's role at the end of the nation's longest war.

President Biden delivers remarks and receives a third dose of the Pfizer-BioNTech vaccine.

Preliminary official results showed the Social Democrats ahead in Germany's election, with no party winning a decisive majority and Chancellor Angela Merkel's Christian Democrats facing a sharp drop in their share of the vote.

Gladys Berejiklian, the premier of New South Wales, Australia, said restrictions in Sydney and other areas of the state still under lockdown would start lifting in October when officials expect 70 percent of residents over the age of 16 to be fully vaccinated.

The new Parliament will ultimately determine who succeeds Angela Merkel, who has served as chancellor for 16 years. Early exit polling has suggested a tight race between the Christian Democratic Union, Ms. Merkel's center-right party, and the center-left Social Democrats.

Thousands of people took to the streets in Berlin to call for urgent action on climate change ahead of national elections in Germany. They were joined by the activist Greta Thunberg who urged them to continue pressuring their political leaders.

Justin Trudeau, the Canadian prime minister, said the two men, Michael Kovrig and Michael Spavor, were returning home after years of imprisonment in China. Their release came just hours after the U.S. had reached a deal to free the Huawei executive Meng Wanzhou.