Under the U.S. Constitution, Trump and Vice President Mike Pence cannot stay in office past their four-year terms without being reelected. If the election does not happen for any reason, constitutional rules of succession kick in. … “The 20th Amendment says if we have not chosen a president by a certain date, it goes to succession,” said Rick Hasen, an election law scholar at UC Irvine. “It’s not like a delay would keep Trump in office longer.
Could Trump delay the November election? Not without risking forfeit to a Democrat
Los Angeles Times, March 17, 2020
March 17, 2020