The electors of President and Vice President shall convene at the State Capitol on the Monday after the second Wednesday in December following their election. If there is any vacancy in the office of an elector caused by death, refusal to act, neglect to attend or otherwise, the electors present immediately shall fill it by plurality of voice votes. When all the electors have appeared or the vacancies have been filled, the electors shall perform the duties required of them by the Constitution and laws of the United States. [Amended by 1979 c.190 § 91; 1995 c.79 § 88; 1995 c.607 § 12]