President Donald Trump has threatened to station immigration-enforcement agents at airports to assist with security checkpoints.

"I will move out brilliant and patriotic ICE Agents to airports where they will do Security like no one has ever seen before," Trump wrote on his social media platform on March 21 while at his Trump International Golf Club in suburban West Palm Beach.

The president added that the Immigration and Customs Enforcement agents would immediately arrest "illegal immigrants" with a "heavy emphasis on those from Somalia." Airport security is manned by Transportation Security Administration personnel.

The focus on people from the east African nation follows months of Trump specifically targeting the communities in Minnesota that are home to Somali populations and which the administration and conservative media have highlighted allegations of billions of dollars in fraud.

Trump's post again singled out the state's governor, Tim Waltz, and U.S. Rep. Ilhan Omar, D-Minnesota. But it was a direct warning to congressional Democrats.

Trump's post also followed a week in which airport security lines have periodically seen exceptionally long lines due to the partial government shutdown over funding of the Department of Homeland Security, which oversees both immigration enforcement and airport security.

At the time the president issued the post, the international airport in Houston posted a 60-minute wait. But other airports, from New York to California and South Florida, had either minimal waits or well under 15 minutes.

The president's social-media message, however, did not mention TSA checkpoint wait times or inconveniences.

The president is scheduled to be in Palm Beach County through March 23. It is his 24th visit to the Winter White House this term.

Antonio Fins is a politics and business editor at The Palm Beach Post, part of the USA TODAY Florida Network. You can reach him at afins@pbpost.com. Help support our journalism. Subscribe today.