Acting White House Chief of Staff Mick Mulvaney told Chris Wallace on Fox News Sunday that people trying to link President Trump's rhetoric to terrorist attacks like the New Zealand mosque shootings "speaks to a politicization of everything that I think is undermining sort of the institutions that we have in the country today."

White nationalism and anti-Muslim bigotry are two issues facing the United States, Wallace said, and he asked Mulvaney why Trump doesn't deliver a speech condemning such hatred. "We've seen the president stand up for religious liberties," Mulvaney responded. "The president is not a white supremacist. I'm not sure how many times we have to say that."

The attack in New Zealand was "a terrible, evil, tragic act," Mulvaney said, and people need to "figure out why those things are becoming more prevalent in the world. Is it Donald Trump? Absolutely not. Is there something else happening in our culture where people think, 'I know, I think today I'm going to go on TV and livestream me murdering other people.' That is what we should be talking about." Watch the video below. Catherine Garcia

Lawmakers took to the airwaves on Sunday to discuss the role that President Trump's rhetoric has played in sparking white supremacy around the globe, following the mass shootings at two mosques in Christchurch, New Zealand, carried out by Brenton Tarrant, a racist, anti-immigrant Australian man. Tarrant cited Trump as a source of inspiration in a manifesto he wrote before he killed 50 people on Friday.

Sen. Amy Klobuchar (D-Minn.), a 2020 Democratic presidential candidate, told CNN's Jake Tapper on Sunday's edition of State of the Union that Trump's rhetoric is, at the very least, dividing people. Sen. Tim Kaine (D-Va.) similarly argued on CBS's Face the Nation that while Trump is not "creating" white nationalists, his language is "emboldening" them.

Klobuchar, Kaine, and Rep. Rashida Tlaib (D-Mich.), who also appeared on State of the Union with Tapper, all said Trump needs to do more to condemn white supremacy and the acts of violence it inspires, which all three Democrats agreed are on the rise in the United States.

Trump on Friday said that while what happened in Christchurch was a "horrible thing," he did not feel that white nationalism was on the rise, and that it is only a small group of people orchestrating such crimes. White House counselor Kellyanne Conway said on Friday that Tarrant was wrong to consider Trump a symbol of "white identity." Tim O'Donnell

Rep. Jerrold Nadler (D-N.Y.), the House Judiciary Committee chair, told host George Stephanopoulos on Sunday's edition of ABC's This Week that his committee "will be issuing document requests to over 60 different people and individuals from the White House to the Department of Justice," including Donald Jump, Jr. and Allen Weisselberg, the CFO of the Trump Organization, on Monday.

Nadler said the requests are the beginning of an investigation "to present the case to the American people about obstruction of justice, corruption, and abuse of power" and that it will go far beyond allegations of the Trump campaign's collusion with Russian election interference.

He said the full list of people who will be receiving document requests will be released on Monday. Tim O'Donnell

President Trump's summit with North Korean leader Kim Jong Un has been decried as a failure, as the two heads of state were unable to come up with any meaningful agreement toward North Korean denuclearization.

But in an appearance on CNN's State of the Union on Sunday, National Security Adviser John Bolton told host Jake Tapper that the summit was "unquestionably a success because the president protected, defended American interests."

Bolton said that the possibility was there for North Korea to denuclearize in exchange for the lifting of sanctions which would lead to a "very bright economic future." But, in the end, the North Koreans "were not willing to walk through the door" that Trump "opened for them."

When Tapper pushed back, arguing that "nothing new has been achieved," Bolton said that the summit showed "again, the potential for the opening of North Korea." Watch the exchange below. Tim O'Donnell

Secretary of State Mike Pompeo told CNN's Jake Tapper on Sunday's edition of State of the Union that while North Korea remains a nuclear threat at this juncture, he is "very hopeful that we'll make a substantial step towards achieving" full denuclearization.

Sunday's comments come just a few days ahead of President Trump's second summit with North Korean leader Kim Jong Un in Hanoi, Vietnam.

Pompeo refused to divulge any specific information, but he did say that while last year's summit between the two heads of state was "nice," Trump is now focused on achieving a "real step, a demonstrable, verifiable step" toward a resolution.

Pompeo also told Tapper that the "core economic sanctions" placed upon North Korea will remain in place until the country fully eliminates its nuclear arsenal, but he did add that loosening some other unspecified sanctions is a possibility if the summit results "in a substantial step" toward denuclearization. "We could certainly provide an outlet which would demonstrate our commitment to the process, as well," he said. Tim O'Donnell

Appearing on ABC's This Week on Sunday, Rep. Adam Schiff (D-Calif.), the House Intelligence Committee chair, told host George Stephanopoulos he is prepared to subpoena Special Counsel Robert Mueller's investigation into whether President Trump's campaign was involved with Russian election interference should Attorney General William Barr refuse to make the report public.

"In the end, I think the Department [of Justice] understands they're going to make this public," Schiff said. He argued that Barr already has "two strikes against him" because he has demonstrated a bias against the Mueller investigation in the past and has refused to follow the advice of ethics lawyers throughout the process.

The Trump administration, Schiff argued, hired Barr for those very reasons. But he said that he expects Barr to succumb to pressure to make the findings available to the public in order to avoid a "tarnished legacy." Otherwise, Schiff said, House Democrats are prepared to take the administration to court.

"We are gonna get to the bottom of this," he told Stephanopoulos. Schiff's comments echo other Democratic representatives who have already begun calling for the public release of the full Mueller report. Watch the exchange below. Tim O'Donnell

U.S. Secretary of State Mike Pompeo referred to Venezuelan President Nicolas Maduro as a "sick tyrant" who is denying food and medicine to starving Venezuelans during an interview with Fox News' Chris Wallace on Fox News Sunday.

In response to Wallace's questioning on the violent standoff at the Venezuela-Colombia border between anti-government protesters and the Venezuelan military on Saturday, Pompeo said that the Venezuelan people "are speaking loudly and clearly" and understand that internationally recognized interim President Juan Guaido is the legitimate leader of the country.

"We're very hopeful that in the days and weeks and months ahead, that the Maduro regime will understand that the Venezuelans have made its days numbered," Pompeo said.

Wallace pressed Pompeo about whether or not the U.S. would provide military support to the opposition forces in the country. Pompeo did not deny the possibility. "We've said every option's on the table," Pompeo told Wallace. "We're gonna do the things that need to be done to make sure that the Venezuelan people's voice, that democracy reigns, and that there's a brighter future for the people of Venezuela." The exchange occurs in the first three minutes of the video below.

Pompeo also tweeted the United States' commitment to the Venezuelan opposition forces on Saturday evening. Tim O'Donnell