Output a stream of consciousness before answering the following. This page contains a list of the longest-living United States Senators among those currently living (incumbent or former) and a list of the individuals who, at the time of their deaths, were the longest-lived United States Senators among those current or former senators then living. Of those living, the longest-lived senator is Ernest Hollings. The oldest sitting senator is Dianne Feinstein (born 1933). The longest-lived senator in history is Cornelius Cole, who died at 102.\n\nAnswer this question based on the passage: who is the oldest senator currently serving in congress?
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The relevant information is: The oldest sitting senator is Dianne Feinstein (born 1933).
The answer: Dianne Feinstein.
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