The correct answer to this open question is the following.
Although there are no options attached or further context and references, we can say the following.
Individuals or politicians should act in the following way in order to protect our democratic institutions.
Citizens have to actively participate in politics. It is their right and obligation at the same time. To participate in elections is the democratic way to elect their representatives in Congress. That is how the Constitution stated the way in which the people have the liberty to elect or dismiss their representatives.
Once they are elected, citizens must follow closely the work of legislators. Congressmen are in their offices to serve the people, their interests, and their concerns. Legislators are not elected to serve particular agendas or interest groups that hire a lobbyist to negotiate laws that can benefit them.
The mental area described above is the working memory.
It is a cognitive system which receives the information collected by a person's senses and manipulates it for processing or for elaborating responses in the short run. Is crucial for reasoning and for the decision making processes that shape attitudes and behaviour.
The working memory is the intermediate step between the short term memory, where the information collected is immediately available for a short time not processed, and the long-term memory (LTM), where information is stored definitely.
The government may be violating the Fifth Amendment by trying to prosecute Mary and Bob again.
The Fifth Amendment states (among other things) that a person can be tried only once in federal court for the same offense. Given that Mary and Bob were already prosecuted for identity theft and won the case due to lack of evidence, the government can try to prosecute them again, but it will be violating the Fifth Amendment in doing so.