Consider the following premises. If it is cold, then Jessica is a politician. If David drinks water, then it is not snowing. David is drinking water if and only if it is cold. It is raining. It is snowing. If Jessica were a politician, then it is cold. Can we infer the following from them? Jessica is a politician.
 From the fact that if David drinks water, then it is not snowing, and that it is snowing we can infer that David is not drinking water. From the fact that David is drinking water if and only if it is cold, and that David is not drinking water we can infer that it is not cold. From the fact that if Jessica were a politician, then it is cold, and that if it is cold, then Jessica is a politician we can infer that Jessica is a politician if and only if it is cold. Finally, from the fact that Jessica is a politician if and only if it is cold, and that it is not cold we can infer that Jessica is not a politician, which contradicts that Jessica is a politician. Therefore, the answer is no.