A special session.
the president
Emergency
The President of the United States.
There are several reasons that a president may call for a special session after Congress has adjourned. These reasons can be for the purpose of settling a dispute between the two houses, to ratify treaties, or for consent for appointments.
NO. Congress have to give it the OK, but without Congress permission he is over stepping the power that he holds by The Constitution of United States. he can call an emergency Congress Session.
Mr. president
No- the president does not tell Congress how to conduct business. The president can call Congress back into session if there is some special issue he wants them to consider.
Power of veto.
The President of the United States has the authority to call for a special session of Congress. This may be done to address urgent matters or to convene lawmakers outside of their regular schedule.
The legislative branch.
President Reserve Call-up
to address the economic crisis