Donald Trump said on Tuesday that the United States would build a “human wall” along the border with Mexico if it cannot construct a physical barrier.

“Tremendous numbers of people are coming up through Mexico in the hopes of flooding our Southern Border. We have sent additional military. We will build a Human Wall if necessary. If we had a real Wall, this would be a non-event!,” Trump said in a Twitter post.

Tremendous numbers of people are coming up through Mexico in the hopes of flooding our Southern Border. We have sent additional military. We will build a Human Wall if necessary. If we had a real Wall, this would be a non-event!

— Donald J. Trump (@realDonaldTrump) February 5, 2019

Trump is expected to highlight the issue of border security as well as his demand for funds to build a wall during his State of the Union address later on Tuesday.

The U.S. recently came off of the longest government shutdown in national history due to Trump’s feud with Congress because of their refusal to provide funding for his wall. Trump seemed to back off from the fight when he signed a continuing resolution to temporarily re-open the government, but he has repeatedly threatened to declare a national emergency in order to appropriate wall funding if no agreement can be reached when the CR expires in 10 more days.

Twitter had some thoughts:

a human wall? whatta time to be alive. https://t.co/uFzMVMMekM

— Colin Campbell (@colincampbell) February 5, 2019

OMG you sound like a nut job – Go back to you room and take a little more "executive" time – No wall – we don't need it – don't want it – u have already wasted enough of our money -think tunnel -ladder – it's more agents we need at ports of entry https://t.co/sARaz5vgt0

— Jill E Friedman (@JillEFriedman) February 5, 2019

Is this some sort of new jobs program? https://t.co/MMlLQFUu5Z

— Gary Legum (@GaryLegum) February 5, 2019

There is so much wrong with this tweet. First of all "Tremendous Numbers" is false and even if it was, wall or not it was definitely be an event. https://t.co/mplTAghwVN

— Tyler “The Pastry Man” De Pâtisserie (@tater2650) February 5, 2019

will mexico still pay for the wall if it is a human wall, and will they pay with money or humans?https://t.co/racDLwpctK

— Cat Russell (@Cat_Russell_) February 5, 2019

@realDonaldTrump tremendous numbers by ass. Its at a 40 year low & maybe if you weren't such a child you could of actually done something to better our country instead of wasting everyone's time. https://t.co/0kIvOyr1Op

— Cindy514 (@Cindy77629253) February 5, 2019