Looks like Congress can review a declared national emergency for termination, see below:

U.S. Code › Title 50 › Chapter 34 › Subchapter II › § 1622

50 U.S. Code § 1622 - National emergencies

(a) Termination methods: Any national emergency declared by the President in accordance with this subchapter shall terminate if—

(1) there is enacted into law a joint resolution terminating the emergency; or

(2) the President issues a proclamation terminating the emergency.

(b) Termination review of national emergencies by Congress:

Not later than six months after a national emergency is declared, and not later than the end of each six-month period thereafter that such emergency continues, each House of Congress shall meet to consider a vote on a joint resolution to determine whether that emergency shall be terminated.

Sauce: https:// www.law.cornell.edu/uscode/text/50/1622