So they can foresee something they might say or do and prepare to counteract a statement they might make or do something they planned to do first. A good (and funny) example is in an episode of Parks & Recreation where Leslie Knope announces that she's going to put a wheelchair ramp by every set of stairs in Pawnee but then the other political party campaign announces that they're going to put wheelchair elevators next to every set of stairs in the town.
They can buy 6 fossils because 68-40=28 and 28•4 is 6
The Bush campaign patronized clinton's character and told Bush's foreign policy successes while Clinton focused on the economy.
I think its Mexican Constitution of 1824.
