You hit on the problem without seeming to realize it. The Senate didn't delay the heck out of anything. McDonnell flat out refused to do anything about Garland's nomination. He declared the nomination "null and void" based on no precedence, case law, and certainly not any interpretation of the Constitution. The Senate majority leader should not be able to shut down the Senate and prevent it from performing its Constitutionally mandated tasks. If the Senate didn't want to confirm Garland they should have held all the appropriate hearings and held an approval vote. If it's the Senate's will that Garland not be approved that's fine. It was singularly McConnell's will that Garland not be approved so he just never allowed hearings. No matter your political leanings that should be seen as abhorrent if you profess to want law and order.