It was a night full of praise and gentle ribbing as President Obama welcomed Canadian Prime Minister Justin Trudeau to the White House for a state dinner Thursday night.

Obama said Trudeau's visit — the first official state visit by a Canadian leader in almost two decades — has been "a celebration of the values that we share," and he touted "the great alliance between the United States and Canada." It was a big night for Justin Bieber, with both Obama and Trudeau making cracks about the singer — first, Obama said in the U.S., Trudeau "may be the most popular Canadian named Justin," with Trudeau later saying, "Leave it to a Canadian to reach international fame with a song called 'Sorry.'"

Obama also got laughs when he brought up the current political climate. "Where else could a boy born in Calgary grow up to run for the president of the United States?" he said, referring to Canadian-born Ted Cruz. "Where else would we see a community like Cape Breton, Nova Scotia, welcoming Americans if the election does not go their way? And to the great credit of their people, Canadians from British Columbia to New Brunswick have, so far, rejected the idea of building a wall to keep out your southern neighbors. We appreciate that."

Trudeau, whose father Pierre Trudeau was prime minister from 1968 to 1979 and 1980 to 1984, thanked the Obamas for their hospitality, and noted that their daughters, Malia and Sasha, were at their first state dinner. "The memories for me of being a kid and not being old enough to attend these kinds of events with my father almost makes me wish I had gone through my teenage years as a child of a world leader — but not quite," he quipped. Trudeau also said the U.S. and Canada are "more like siblings. We have shared parentage, but we took different paths in our later years. We became the stay-at-home type, and you grew up to be a little more rebellious." He ended his toast to Obama with a wish: "May the special connection between our two countries continue to flourish in the years to come, and may my gray hair come in at a much slower rate than yours has." Catherine Garcia

Special Counsel Robert Mueller appears to be delving specifically into President Trump's "behavior in the White House," The New York Times reported Wednesday. Mueller has recently requested more information on "13 different areas" related to Trump's actions in office, as part of his ongoing investigation into Russian election meddling and the Trump team's potential ties to it:

One of the requests is about a meeting Mr. Trump had in May with Russian officials in the Oval Office the day after James B. Comey, the F.B.I. director, was fired. That day, Mr. Trump met with the Russian foreign minister, Sergey V. Lavrov, and the Russian ambassador to the United States, Sergey I. Kislyak, along with other Russian officials. The New York Times reported that in the meeting Mr. Trump had said that firing Mr. Comey relieved "great pressure" on him.

Mr. Mueller has also requested documents about the circumstances of the firing of Michael T. Flynn, who was Mr. Trump's first national security adviser. Additionally, the special counsel has asked for documents about how the White House responded to questions from The Times about a June 2016 meeting at Trump Tower. That meeting was set up by Donald Trump Jr., the president's eldest son, to get derogatory information from Russians about Hillary Clinton. [The New York Times]

Trump lawyer Ty Cobb has reportedly assured Mueller's team that he will turn over the relevant documents and notes this week. Becca Stanek

Sen. John McCain (R-Ariz.) stunned his colleagues in the Senate when he torpedoed the Republican health-care bill with a tie-breaking no vote in July. With the GOP prepared to send its latest iteration of the health-care bill to the floor sometime next week, McCain is now poised to potentially make or break the legislation yet again.

Republicans have a Sept. 30 deadline for passing a health-care bill with only 50 votes. The Congressional Budget Office won't have its analysis on how much the bill would affect coverage or its costs for consumers until October. Additionally, the hearing on the bill will be before the Senate Homeland Security and Government Affairs committee, which "does not have primary jurisdiction over health care, making a formal markup of the bill impossible," Politico writes.

Despite the bill's co-sponsor, Sen. Lindsey Graham (R-S.C.), being McCain's close friend, McCain has stressed to Politico that he is dissatisfied with how his party is pushing the bill. "Nothing has changed," he said Wednesday. "If [Senate Majority Leader Mitch] McConnell wants to put it on the floor, that's up to McConnell. I am the same as I was before. I want the regular order."

Asked to clarify if that means he is voting no, McCain replied: "That means I want the regular order. It means I want the regular order!"

Three GOP defections would kill the bill. Sens. Susan Collins (R-Maine) and Rand Paul (R-Ky.) are believed to be opposed to the bill. In addition to McCain, Sen. Lisa Murkowski (R-Alaska) is reportedly on the fence about the legislation. Jeva Lange

At a United Nations lunch Wednesday with African leaders, President Trump marveled at Africa's "tremendous business potential." "I have so many friends going to your countries trying to get rich," he said. "I congratulate you, they're spending a lot of money."

Trump thinks the U.S. could benefit from teaming up with Africa, too. "In this room I see partners for promoting prosperity and peace on a range of economic, humanitarian, and security issues. We hope to extend our economic partnerships with countries who are committed to self-reliance and to fostering opportunities for job creation in both Africa and the United States," Trump said, noting that "six of the world's 10 fastest growing economies are in Africa."

At another point in the speech, Trump referenced the country of Nambia, which does not exist.

Catch a snippet of his praise for Africa's business opportunities for his "many friends" below. Becca Stanek

President Trump announced that the nonexistent country of "Nambia" has an increasingly self-sufficient health-care system during a United Nations lunch with African leaders on Wednesday:

So far, Trump appears to have failed to impress African leaders — a photo of the Zimbabwean delegation listening to Trump's U.N. speech on Tuesday went viral and President Robert Mugabe appeared to sleep through the whole thing.

Watch Trump completely make up the nation of Nambia below. Jeva Lange

The Senate plans to vote on the latest iteration of the Republican health-care bill next week, a spokesperson for Senate Majority Leader Mitch McConnell (R-Ky.) said Wednesday. "It is the leader's intention to consider Graham-Cassidy on the floor next week," the spokesperson told Politico.

The bill, co-sponsored by Sens. Lindsey Graham (R-S.C.) and Bill Cassidy (R-La.), would convert ObamaCare subsidies and Medicaid payments into block grants to states, allowing each state ample leeway to decide coverage rules and patient protections, plus cut Medicaid sharply. On Tuesday, a group of 11 governors, including five Republicans and independent Gov. Bill Walker (Alaska), urged the Senate to drop Graham-Cassidy, joining the AARP, the American Medical Association, the American Hospital Association, and other patient advocacy groups, plus Jimmy Kimmel.

Efforts to write an alternative, bipartisan health-care bill proved fruitless. Republicans have a Sept. 30 deadline for passing a health-care bill with only 50 votes. Three GOP defections would kill the bill. Sens. Susan Collins (R-Maine) and Rand Paul (R-Ky.) are believed to be opposed to the bill; Sens. Lisa Murkowski (R-Alaska) and John McCain (R-Ariz.) remain undeclared swing votes. Jeva Lange

Sean Penn is slated to star in an upcoming Hulu original series about humanity's first mission to Mars. The series, called The First, was made by Beau Willimon, the creator of the Netflix original smash-hit series House of Cards.

This marks the two-time Oscar winner's "first regular role" on a television series, Variety noted. The show, set in the near future, "will depict the challenges a group of astronauts face while trying to achieve interplanetary colonization, while following the lives of their loved ones on Earth and the ground team overseeing the mission," Mashable reported. Penn's role has not yet been revealed.

The show is set to premiere next year. Becca Stanek

A stunningly large percentage of President Trump's supporters approve of his decision to compromise with Democrats on the Deferred Action for Childhood Arrivals (DACA) program. A new The Economist/YouGov poll released Wednesday revealed that 49 percent of Trump voters approve of Trump's decision to cut a deal over dinner with House Minority Leader Nancy Pelosi (D-Calif.) and Senate Minority Leader Chuck Schumer (D-N.Y.) to pass a law granting permanent legal status to DREAMers, immigrants protected under DACA who were brought illegally to the U.S. as children. Thirty-nine percent disapprove of the compromise Trump struck just days after rescinding DACA.

That wasn't all that Trump's supporters approved of him working on with the Democrats. The poll also revealed that 72 percent of Trump voters approve of the president working with Democrats on health care, 73 percent approve of across-the aisle work on tax reform, 66 percent approve of bipartisan efforts on immigration issues, and 62 percent approve of Trump teaming up with Democrats on the environment.

The poll surveyed 1,500 respondents from Sept. 17-19. Its margin of error is plus or minus 3 percentage points. Becca Stanek