
The People's Climate March takes place in Washington on Saturday, April 29. The march, which coincides with President Donald Trump's 100th day in office, is a protest of the President's environmental policies. Hundreds of sister marches were planned across the United States and around the world.

A woman attends the annual meetings of the National Rifle Association on Saturday, April 29. The convention is taking place in Atlanta through the weekend.

President Trump acknowledges supporters as he leaves a rally in Harrisburg, Pennsylvania, on Saturday, April 29. Trump opted to host the rally instead of attending the White House Correspondents' dinner in Washington. "There is no place I'd rather be than right here in Pennsylvania to celebrate our 100-day milestone, to reflect on an incredible journey together," Trump said.

Vice President Mike Pence pets an emu as he and his family visit the Taronga Zoo in Sydney on Sunday, April 23. Pence was on the last part of a four-country trip.

Former talk-show host David Letterman has his beard tugged by US Sen. Al Franken as they meet with climate-change activists in Washington on Friday, April 28.

First lady Melania Trump listens while her husband speaks to the press in the White House Oval Office on Thursday, April 27.

Former President Barack Obama attends a forum at the University of Chicago on Monday, April 24. It was his first public appearance since leaving the White House three months ago. See what Obama said

President Trump salutes US Marines at the White House as he and his wife walk out to greet Argentina's President on Thursday, April 27.

US Rep. Jason Chaffetz, the chairman of the House Oversight Committee, looks at US Rep. Elijah Cummings, the ranking Democrat on the committee, as they address reporters in Washington on Tuesday, April 25. They said Michael Flynn, President Trump's former national security adviser, did not properly disclose past payments for a speech he gave to Russia's state-run broadcaster in December 2015. Flynn's lawyer, Robert Kelner, said Tuesday that Flynn was not hiding anything, noting that Flynn briefed the Defense Intelligence Agency on his trip to Russia.

House Minority Leader Nancy Pelosi poses with journalists' children at the end of her weekly news conference in Washington on Thursday, April 27. It was national Take Our Daughters and Sons to Work Day, and many journalists brought their children to the US Capitol.

US Secretary of State Rex Tillerson addresses the United Nations Security Council on Friday, April 28. Tillerson called on the world community to drastically increase pressure on North Korea, warning that failure to do so could be "catastrophic" and that the United States is prepared to take military action if necessary.

A Donald Trump supporter takes part in a pro-Trump rally in Berkeley, California, on Thursday, April 27. People at the rally protested the cancellation of a speech that conservative commentator Ann Coulter was going to give on the campus of the University of California-Berkeley. Student groups who wanted Coulter to speak said their First Amendment rights were being infringed. A university spokesman said the group organizing the speech didn't follow proper procedure.

Former Vice President Joe Biden watches an NBA playoff game in Washington on Wednesday, April 26.

Ivanka Trump, President Trump's daughter and adviser, visits the Holocaust Memorial in Berlin on Tuesday, April 25. She was in Germany to participate in a panel discussion on women's empowerment and entrepreneurship.

Steven Mnuchin, the secretary of the treasury, briefs White House reporters about budget negotiations on Monday, April 24. He said President Trump's plan to cut taxes "will pay for itself with economic growth."

President Trump signs an executive order regarding the US agriculture business on Tuesday, April 25. The order looks to help the industry by establishing a task force to identify impediments to its growth.

People walk near the US Capitol on Thursday, April 27. Congress voted on a bill to keep the federal government open for another week, averting a shutdown while negotiators hammer out a broader deal to fund agencies through September. See last week in politics