Trump's tweet came minutes before he is expected to meet with North Korean dictator Kim Jong Un to discuss a possible deal for the country to denuclearize.
It was not immediately known when Kudlow suffered the heart attack or what his condition was.
E3 2018: Just Cause 4 Gameplay Trailer Introduces Extreme Weather, More
In celebration of this new game, the Dragon Quest franchise will also be crossing over with Final Fantasy: Brave Exvius . Perhaps we'll see this game at Sony's showcase tonight, or maybe not even until after Shadow of the Tomb Raider is out.
Kudlow returned from Canada over the weekend after joining world leaders and members of Trump's White House circle for a combative Group of 7 summit.
"He is now in Walter Reed Medical Center", he added.
During President Ronald Reagan's first term, Kudlow was associate director for economics and planning in the White House's Office of Management and Budget.
What does net neutrality repeal mean for you?
And in its repeal decision, the FCC explicitly rejects the idea that it has much authority to regulate Internet providers at all. Customers of streaming services like Netflix could see their subscription fees rise if the company chooses to pay more.
Kudlow, an unabashed supporter of free trade, joined the Trump administration earlier this year.
Trudeau, in a news conference on Saturday, reiterated his strong objections to steep tariffs on Canadian exports of steel and aluminum to the United States.
"Here's the thing. He really kind of stabbed us in the back", Kudlow said on CNN Sunday.
‘Anthem:’ EA Releases Upcoming Game’s Pre-Order Details
Elsewhere, Darrah confirmed that Anthem will require an internet connection to play even if you're looking to go solo. EA's backpedalling on lootboxes shows the company has indeed learned from Battlefront II's big controversial system.
As a commentator, Kudlow had strongly backed Trump's moves to cut taxes and reduce business regulations but was openly critical toward the president's tariffs moves.