Read the constitution.
My apology for the poor choice of words >>> Shut up! <<<.
Using the term >>> Good grief! <<< would have been a more suitable comment.
25th Amendment: Whenever there is a vacancy in the office of the Vice President, the President shall nominate a Vice President who shall take office upon confirmation by a majority vote of both Houses of Congress.
Pence could have resigned... bringing the proceedings to an abrupt halt.