Tim Kaine actually said...

The problem with sequester is it's money, it's timing, and it's flexibility, and all three of those create problems.

If Congress would just pass the President's budget... would our readiness issues be much easier to deal with than they are under the sequest...

Congress could have fixed this. Congress shouldn't have put it in place.

It's because of Congress. Sequester is because Congress hasn't done a budget.