"Katrina and John will play pivotal roles on our campaign once again as we develop a winning strategy through 2020 to Keep America Great," said Michael Glassner, the campaign's chief operating officer. "They will also contribute tremendously to our national engagement in the mid-term elections this year. We're delighted to have them back on the team."
McEntee, who served on Trump's winning presidential campaign beginning in 2015, joined the Trump administration after the election. He was escorted off the White House grounds on Monday over an "unspecified security issue," the Wall Street Journal first reported, citing sources.
Federal law enforcement officials later confirmed to NBC that McEntee was under investigation by the Secret Service for serious financial crimes. The Wall Street Journal reported that McEntee had problems relating to gambling and taxes that were an obstacle to his obtaining security clearance.
The news of McEntee's firing came just minutes after reports that Secretary of State Rex Tillerson had been booted after more than a year as the top U.S. diplomat.
Pierson, who often gave interviews on cable news during the 2016 presidential race,worked with America First Policies, a pro-Trump nonprofit with deep connections to the White House, the Trump campaign and the Republican National Committee.
America First has denied coordinating its work with the White House or the Trump campaign.
"We're getting very close to having the Cabinet and other things that I want," Trump said outside the White House on Tuesday.
Before entering Trump's orbit, McEntee was the starting quarterback for the University of Connecticut's football team for 12 games during the Huskies' lackluster 2011 season.