Once Stefanik vacates her seat, the 21st District must hold a special election within 90 days — meaning the seat could stay empty until as late as April.

With the five-term congresswoman leaving New York to serve in the Trump administration, party leaders on both sides of the aisle will have short notice to find

Elise Stefanik, the third most powerful Republican in the U.S. House, will presumably be replaced by a first-term representative.