Since you refuse to identify any particular language that you claim gives the President "Emergency Powers", I will use some portions of your link.
First I will point out that you link is simply someone's article and opinion and that the FACTS presented in your link do not support your claim, only the opinion.
The First Paragraph:
"The President of the United States possesses certain powers to act in emergency situations." (opinion) "Though such “emergency power” is not specifically expressed in the Constitution," (FACT) the Executive Branch is designed to be able to act quickly in times of war or national emergency. Because emergency power is not specifically stated in the Constitution," (FACT) its scope is somewhat limited, typically extending only to situations that compromise or threaten the safety or well-being of the public." (OPINION) "To explore this concept, consider the following emergency power definition."
You see, Damocles has used an age old trick of combining fact with opinion to try to trick the reader into believing the opinion is fact. A true strict constructionist would see that those who have the opinion that the president has special "emergency powers" if he declares an emergency, are STRETCHING the Constitution beyond where the founders intended. Though history despots have used a hyped emergency to claim "emergency powers" and anoint themselves King. The founders knew this and protected us from that by refusing to grant the President of the United States the Constitutional power to grant himself additional authority by declaring an emergency.
I find it funny that, out of love for President Rump, people who consider themselves Strict Constructionists are willing to undermine this philosophy to extend this ideology to the despot Don Trump.
Yes, presidents have usurped "emergency powers" in the past, to do patiently unconstitutional things, like when Roosevelt imprisoned Asian Americans in prison camps. Promoting the idea that the President has this authority is dangerous and WRONG.
He argues that because Congress passed a bill limiting "emergency powers" is evidence that these powers exist, that is putting the cart before the horse. Congress can limit my power to cut myself a huge slice of cheese from the moon, it does not change that I never had that power in the first place.
Now, say I am wrong, for political reasons all you want, I am not wrong here.
The FACT remains that DAMOCLES cannot point to any portion of the CONSTITUTION that grants these mythical powers to the President. This was the intent of the founders for a very specific reason. To pretend otherwise is simply wrong.