President Donald Trump monitored Hurricane Harvey from the seclusion of his official mountaintop retreat on Saturday, sending a flurry of tweets before and after the powerful storm made landfall in Texas in an effort to reassure the public that he was fully in control of managing the first natural disaster since he took office.

“Closely monitoring #HurricaneHarvey from Camp David. We are leaving nothing to chance. City, State and Federal Govs. working great together!” Trump tweeted in the morning. In an evening tweet, he touted “Wonderful coordination between Federal, State and Local Governments in the Great State of Texas – TEAMWORK!”

The White House said in a statement Saturday that Trump held a video teleconference briefing on the storm with Vice President Mike Pence, Cabinet members and senior staff back at the White House. Trump directed all departments and agencies to “stay fully engaged and positioned to support his number one priority of saving lives,” and the governors of Texas and Louisiana, the White House said.

Trump reminded his team that the full effects of the storm will be felt over the next few days with heavy rains and flooding. He also thanked all the volunteer and faith-based organizations that are providing assistance, and sent his thoughts and prayers to those who were affected.

Harvey was downgraded to a tropical storm on Saturday afternoon.

The White House said Trump had received multiple storm updates on Friday and Saturday from chief of staff John Kelly, formerly secretary of the Department of Homeland Security, where the Federal Emergency Management Agency is housed. The White House released photos of Trump presiding over Saturday’s video teleconference from the Camp David presidential retreat in Maryland’s Catoctin Mountains with his advisers gathered in the White House Situation Room.

Wonderful coordination between Federal, State and Local Governments in the Great State of Texas – TEAMWORK! Record setting rainfall.

— Donald J. Trump (@realDonaldTrump) August 26, 2017

A businessman inexperienced at managing a natural disaster, Trump has been mindful of his image during the storm.

He tweeted a photo of himself in the Oval Office on Friday, with his desktop covered by color-coded papers. He was joined by Kelly and homeland security adviser Tom Bossert.

Trump’s tweets also covered conversations he had with the governors of Texas and Louisiana, urgings for the public to follow the advice and orders of their state and local officials, and his decision to declare that a major disaster exists in Texas, which expedites the flow of federal money for rebuilding after the storm.

Bossert told reporters that “this is right up President Trump’s alley” when asked Friday what the president needed to do to project leadership during the storm.

Closely monitoring #HurricaneHarvey from Camp David. We are leaving nothing to chance. City, State and Federal Govs. working great together!

— Donald J. Trump (@realDonaldTrump) August 26, 2017

“Not only has he shown leadership here, but his entire focus has been on making America great again,” Bossert said. “He is focused on the Americans that voted him into office. He’s focused on the Americans that didn’t vote him into office. He’s focused on effecting positive change in this country. And when we go in and brief him on the preparations for this hurricane, he is acutely focused on making sure that — and just the right thing, by the way — that the American people in the storm’s path have what they need.”

.@ChuckGrassley – got your message loud and clear. We have fantastic people on the ground, got there long before #Harvey. So far, so good!

— Donald J. Trump (@realDonaldTrump) August 26, 2017

Trump also responded to Sen. Chuck Grassley of Iowa, who told Trump on Twitter to “keep on top of hurricane Harvey” and not repeat the mistakes that President George W. Bush made with Hurricane Katrina after it devastated New Orleans at this time in 2005. Bush was criticized for a slow federal government response to the storm caused hundreds of deaths and tens of billions of dollars in damage.

“Got your message loud and clear. We have fantastic people on the ground, got there long before #Harvey. So far, so good!” Trump tweeted back to Grassley.

(AP)