altSt. Patrick’s Day is less than 24 hours away, and many senators are already seeing green.

Sen. Lindsey Graham plans to spend March 17 with a bunch of boozing Irishmen and women. The South Carolina Republican will be speaking at the Hibernian Society, which is known as the oldest Irish organization in the U.S. “It’s a good venue,” he says. “Most people are drunk before I speak, so I’ll sound good.”

When ITK asked whether Graham planned on joining them in the festive guzzling, he laughed, “One of us has to be sober.”

Sen. Scott Brown’s home state, with a large population of Irish descendants, certainly knows how to ring in a St. Patty’s celebration. The lawmaker, who’s in a tough re-election battle against Democrat Elizabeth Warren, is packing his schedule with speeches at about 15 events.

Brown said he has been crafting his jokes he'll include in his remarks for about a month, and is looking forward to poking a little fun at some fellow Massachusetts politicians:  “It’s the best part of politics in Massachusetts.”

But not every senator is on the job for St. Patrick’s Day. Sens. Ben Nelson (D-Neb.) and Patrick Leahy (D-Vt.) say they plan on having quiet family dinners at home.

Nelson even told us what’s on the menu that evening: “It’ll be corned beef and cabbage. And it’ll be interesting to see if the grandkids will eat it.”

-Eryn Dion and Josh Fatzick contributed to this report.