Mulvaney also said that the "deep state" is still trying to hinder Trump and expressed frustration that the president could not fire more obstructive officials.
The White House is working to set up an official visit between President Trump and Russian Foreign Minister Sergey Lavrov, prompting critics to question the timing of such a rendezvous.
"If you're going to cough, please leave the room," the president told Mulvaney while filming an interview with ABC News.
Jessica Duenas of Kentucky and Kelly Holstine of Minnesota were both awarded Teacher of the Year 2019 for their respective states.
Trump's schedule shows he has spent a solid majority of his time, 60 percent, engaged in unstructured, unbothered and very private "Executive Time."
Independent Senator Bernie Sanders of Vermont delivered his own remarks live on various social media platforms following Trump's Oval Office address, in addition to Alexandria Ocasio-Cortez appearing on MSNBC.
The president repeated some of the White House's main talking points but left out important context, such as the way most drugs actually enter the U.S., which is through legal points of entry.
During his first cabinet meeting of 2019, Trump gave a shout out to Kanye West and bragged that his generals looked like "they were from a movie."
Feminist author Carol Gilligan analyzes the political theater of President Donald Trump, Nancy Pelosi, Senate Minority Leader Chuck Schumer and Vice President Mike Pence.
In the interval between their two shows on Tuesday night, CNN's Don Lemon and Chris Cuomo discussed the bizarre meeting involving Donald Trump, Mike Pence, Chuck Schumer and Nancy Pelosi.
Lindsey Graham said the Democrats "want Trump to lose more than the country to win."
The president reportedly grew frustrated after he took responsibility for any government shutdown over the budget impasse.
"I want whatever he's taken, that's some kind of Zen," MSNBC's "Deadline: White House" host Nicolle Wallace joked.
"It is not clear how Trump could have appeared any more irrational and unhinged," Jennifer Rubin said.
The retort came as part of a long, tense, on-camera meeting between President Donald Trump, House Minority Leader Nancy Pelosi and Senate Minority Leader Chuck Schumer over how to avoid a government shutdown.
In T.I.'s video, a woman who resembles the first lady strips naked in the Oval Office while the rapper sits at the president's desk.
The rapper revealed the simple code to get into phone while showing president a GIF of a hydrogen-powered iPlane.
President Donald Trump flipped his argument on the separation of children from their families at the border and signed an executive order Wednesday reversing his own administration's policy.
During an interview on CNN's "The Van Jones Show" Kim Kardashian West said "never say never" when asked if she'd ever run for office.
Representative Kristi Noem, a South Dakota Republican, said President Donald Trump views his own face going up on Mount Rushmore, or Mount Trumpmore, as no laughing matter.
Eric Trump shared pictures of him hanging out with his dad at the White House.
Washington, Andrew Jackson, Thomas Jefferson and Alexander Hamilton can all be seen despairing of the president in their Oval Office portraits.
"We don't prosecute journalists for doing their jobs."