President Trump is not happy with how Homeland Security Secretary Kirstjen Nielsen is running the agency, and the White House is coming up with a list of possible replacements, two people with knowledge of the matter told Quartz.

Sen. Tom Cotton (R-Ark.), Energy Secretary Rick Perry, and retiring Acting Director of Immigration and Customs Enforcement Thomas Homan have all been mentioned as possibilities, Quartz reports.

Congress has declined to give Trump the funding to build the wall along the southern border that he promised supporters he'd deliver once in office, and he blames Nielsen for it. The New York Times reported last week that after he berated her in a meeting, she drafted a resignation letter but never sent it. Nielsen told lawmakers during a hearing this week that she never "threatened to resign," and today, Trump said Nielsen was doing "a good job, and it's not an easy job." Catherine Garcia

A man was arrested on Friday after accusations that he made threatening phone calls to Democratic officials.

John Kless, 49, of the Fort Lauderdale, Florida area, reportedly left vulgar messages rife with racist and anti-Islamic rhetoric on Tuesday. Kless ranted about gun rights, 9/11, and illegal immigrants, per The Washington Post. He also threatened the lawmakers with violence.

Among the recipients of the threats were Reps. Rashida Tlaib (D-Mich.), Eric Swalwell (D-Calif.), and Sen. Cory Booker (D-N.J.). In all three messages, Kless mentioned "hatred" for Rep. Ilhan Omar (D-Minn.), though he reportedly did not call the congresswoman herself. Kless' threats were made following several other alleged death threats specifically targeting Omar. She said that they have increased ever since President Trump posted a video consisting of graphic footage of 9/11 edited together with clips of Omar making comments for which she has been criticized for downplaying the tragedy of the attacks.

Kless appeared in court on Friday and was released. Arraignment is set for May 3 in Fort Lauderdale. Tim O'Donnell

The White House revealed on Friday that President Trump spoke with Libya's Gen. Khalifa Haftar via phone call on Monday.

Trump reportedly praised Haftar, who is leading a rebel assault on the country's capital Tripoli, as he and his Libyan National Army try to wrest control from the incumbent United Nations-backed government. The two discussed Haftar's "significant role" in fighting terrorism and securing Libya's oil resources, as well as their "shared vision" for Libya's future.

Trump's praise of Haftar is seen as a reversal of United States policy in Libya — Secretary of State Michael Pompeo demanded a halt to Haftar's assault earlier this month.

The news of the phone call reportedly led to thousands of Libyans taking to the streets in protest. "The call has no meaning, but we will respond to it," a protester told Reuters.

It is unclear why the White House waited several days to announce the phone call. Tim O'Donnell

Police arrested two men in connection with the murder of journalist Lyra McKee in Derry, Northern Ireland on Saturday.

McKee, 29, was shot and killed amid a riot in Derry on Thursday as she was watching Irish nationalist youths clash with police during a riot. Police reportedly said McKee was not the gunman's intended target, but was hit by a bullet fired in the direction of the police officers.

Police described the shooting as a "terrorist incident." The Irish News reports that they believe the suspects in the murder are linked to the dissident republican group the New Irish Republican Army, an offshoot of the Irish Republican Army which remains opposed to the 1998 Good Friday Agreement and the fragile ceasefire in Northern Ireland. McKee's murder follows the explosion of a large car bomb in Derry in January, which was also blamed on the New IRA.

There are fears that militant groups are trying to exploit political tensions caused by the United Kingdom's decision to leave the European Union, Reuters reports.

Northern Ireland's political leaders — nationalists and unionists alike — urged for calm following the violence.

A vigil was held for McKee in Derry. Tim O'Donnell

Sen. Elizabeth Warren (D-Mass.) on Friday called on the House to initiate impeachment proceedings against President Trump. Warren said her reasoning is based on the findings of Special Counsel Robert Mueller, which Attorney General William Barr made available — with redactions — to Congress and the public on Thursday.

In an appearance on CNN's The Rachel Maddow Show on Friday evening, Warren added that "the report is absolutely clear that a foreign government attacked our electoral system to help Donald Trump."

Warren is the first 2020 Democratic presidential candidate to openly call for impeachment, per NBC News. Tim O'Donnell

Count Fox News host Chris Wallace among those who think Attorney General William Barr is going too far in playing defense for President Trump in the face of Special Counsel Robert Mueller's findings.

Wallace said on Friday that Barr's press conference about Mueller's report on seemed "to go against the grain of what Robert Mueller was suggesting in his own report," especially on the topic of obstruction of justice. While Mueller's report said the investigation had not definitively ruled on whether Trump obstructed justice in his effort to influence and shut down the probe into Russian election interference, Barr characterized the conclusions as too vague to merit further scrutiny.

Barr's insistence that Trump deserves to be let off the hook "seems even more troubling, and perhaps even more politically charged when you read the report," said Wallace.

"The reason that Robert Mueller didn't make a finding on obstruction wasn't because he didn't feel capable of doing it, but because he thought in direct contradiction to what Bill Barr said yesterday," that further action should be left to Congress, Wallace continued.

Watch Wallace's comments below, via Fox News. Summer Meza

Despite House Majority Leader Steny Hoyer (D-Md.) trying to shut the door on impeachment this week, some Democrats are still trying to keep it open.

Rep. Steve Cohen (D-Tenn.) is the latest Congressional Democrat to advocate for the impeachment of President Trump, appearing on MSNBC on Friday and making it clear he disagrees with Hoyer and House Speaker Nancy Pelosi (D-Calif.).

"I believe impeachable offenses have been committed," Cohen told MSNBC's Hallie Jackson. "And I believe it's worthwhile to put in history's files what this man has done, and impeach him. But I don't think it's going to happen politically."

Cohen also expressed little faith that the Department of Justice will comply with Democrats' subpoena for the full Mueller report: "[I'm about] as confident as I am that the sun's gonna stop shining."

He also suggested considering a censure, which he said would at least put a "historical note" to Trump's conduct.

Cohen's Democratic colleague Rep. Elijah Cummings (D-Md.), the chairman of the House Oversight and Reform Committee, echoed his concerns over the report on MSNBC, "begging" voters to pay attention to Mueller's findings.

"I often say that people are going to look back at this time 200 years from now and ask the question, 'What did you do to reverse this?'" Cummings said.

Watch Cohen's MSNBC appearance on Mediaite, and watch Cummings below. Marianne Dodson