[Borges]

Who’s the oldest member of the Senate now? Dianne Feinstein I assume? She turns 80 in a few weeks.

[Blood of Tyrants]

Yep, Fineswine is the next oldest. Chuck Grassley is next by a few months.

http://en.wikipedia.org/wiki/List_of_current_United_States_Senators_by_age

[Ingtar]

1 Dianne Feinstein California June 22, 1933 November 10, 1992 59 years, 141 days 20 years, 205 days 79 years, 346 days Democratic

2 Chuck Grassley Iowa September 17, 1933 January 3, 1981 47 years, 108 days 32 years, 151 days 79 years, 259 days Republican

3 Orrin Hatch Utah March 22, 1934 January 3, 1977 42 years, 287 days 36 years, 151 days 79 years, 73 days Republican

4 Richard Shelby Alabama May 6, 1934 January 3, 1987 52 years, 242 days 26 years, 151 days 79 years, 28 days Republican

WIKI already updated. Here are the four that are 79+