Senator McConnell’s explanation for his delay, that filling the vacancy on the Supreme Court should await a new president, is transparently absurd. It is, of course, no justification for this delay — which lasted from Mr. Garland’s nomination on March 16, 2016, to its expiration, Jan. 3, 2017 — that the Constitution does not place a specific time limit for such consent hearings. There are dozens of requirements in the Constitution and other legal pronouncements that do not set forth specific time limitations for particular actions. There is a transcendent legal doctrine that when no time limit for particular action is established, that action shall be taken within a “reasonable” time. What is “reasonable” depends, of course, on the particular circumstances. No one could credibly contend that a delay of 293 days is “reasonable” to hold a consent hearing for a nominee to fill a Supreme Court vacancy. One hears a suggested time limit of 30 to 90 days, with 60 days seeming to be the center of gravity.