It follows reports that President Trump was outraged by comments made by Mulvaney during the Ukraine corruption saga.
The allegations of abuse of power over the Ukraine incident led to impeachment proceedings against President Trump.
Mulvaney's departure has been on the cards for the last few weeks.
Mr Mulvaney is to become US special envoy to Northern Ireland, while North Carolina lawmaker Mark Meadows has been appointed to take over his former position.
Iranian state broadcaster hit in Israeli attack
An Israeli strike hit Iran's state broadcaster on Monday as Iran called on US President Donald Trump to force a ceasefire in the four-day-old aerial war, while Israel's prime minister said his country was on the "path to victory".
Israel-Iran battle escalates, civilians urged to evacuate target areas
Israel and Iran continued exchanging attacks that killed and wounded civilians, with both militaries urging civilians on the opposing side to take precautions against further strikes.
Air India chairman says crash should drive effort to build safer airline
Air India's Chairman N. Chandrasekaran on Monday told staff that last week's plane crash that killed at least 271 people should be a catalyst to build a safer airline, urging employees to stay resolute amid any criticism.
40 killed in Gaza as UN denounces Israeli-backed aid system
Israeli fire killed at least 40 people, half of them near an aid distribution site operated by the US-backed Gaza Humanitarian Foundation on Monday, the territory's health ministry said, as UN officials denounced Israeli-backed aid delivery methods.
Harvard to urge judge to bar Trump from closing doors for international students
A federal judge is set to consider on Monday whether to extend an order blocking US President Donald Trump's plan to bar foreign nationals from entering the country to study at Harvard University.
US police arrest suspect in Minnesota lawmakers' shooting
A massive two-day manhunt ended on Sunday with the arrest of Vance Boelter, 57, for allegedly killing a Minnesota Democratic state lawmaker and her husband while posing as a police officer.
Three hikers killed by lightning strike in Austrian Alps
Three hikers, including two brothers and the wife of one of the men, were killed by a lightning strike during a thunderstorm in Austria's Tyrolean Alps over the weekend, police said on Monday.
Trump calls for expanded deportation efforts of people illegally in US
US President Donald Trump on Sunday said efforts to deport people who are illegally in the country must be expanded, following nationwide protests since immigration raids were ramped up.
Pinoy Expat Corner
Welcome to Pinoy Bulletin, your go-to source for staying informed about important announcements, exciting group activities, community events, and job opportunities! Make sure to tune in every weekdays to Tag Gising Na from 5AM - 10 AM for a comprehensive roundup of important updates
Pinoy Expat Corner
Welcome to Pinoy Bulletin, your go-to source for staying informed about important announcements, exciting group activities, community events, and job opportunities! Make sure to tune in every weekdays to Tag Gising Na from 5AM - 10 AM for a comprehensive roundup of important updates.
Pinoy Expat Corner
Welcome to Pinoy Bulletin, your go-to source for staying informed about important announcements, exciting group activities, community events, and job opportunities! Make sure to tune in every weekdays to Tag Gising Na from 5AM - 10 AM for a comprehensive roundup of important updates.
