Here are the 28 active national emergencies. Trump won't be adding the opioid crisis to the list

[LiberalArkie]

https://www.cnn.com/2017/08/12/politics/national-emergencies-trump-opioid/index.html

also

The National Emergencies Act (NEA) (Pub.L. 94–412, 90 Stat. 1255, enacted September 14, 1976, codified at 50 U.S.C. § 1601–1651) is a United States federal law passed to stop open-ended states of national emergency and formalize the power of Congress to provide certain checks and balances on the emergency powers of the President.

The Act empowers the President to activate special powers during a crisis but imposes certain procedural formalities when invoking such powers. The perceived need for the law arose from the scope and number of laws granting special powers to the executive in times of national emergency. Congress can undo a state of emergency declaration with either a joint resolution and the President's signature, or with a veto-proof majority vote.[1]

The legislation was signed by President Gerald Ford on September 14, 1976.[2] As of January 2019, the United States is under 31 continuing declared states of national emergency.[1][3]

https://en.wikipedia.org/wiki/National_Emergencies_Act

[Yo_Mama_Been_Loggin]

1. None of them were declared because the President couldn't get his way with Congress