To wrap up the holiday party season on the Hill, here are some great options for today.Open to staffers:Alliance for Innovation and Infrastructure, 5:30 to 7:30 p.m. at 134 Duddington Place SE. RSVP: kgluba@aii.org. The group is encouraging all House and Senate staffers to join them “for a few hard or soft drinks and holiday cheer.”Don’t even leave the office: Peruvian Ambassador Carlos Pareja is teaming up with the Congressional Caucus on Peru for Peruvian Cuisine & Pisco Night by chef Jose Andres, 6 to 8 p.m. Rayburn House Office Building foyer. RSVP: Cdavis@embassyofperu.us.Staffers welcome, but not guaranteed entrance:Sound Exchange, 6 to 8:30 p.m. at The Hamilton, 600 14th St. NW. RSVP: events@soundexchange.com. “It’s sure to be a memorable night filled with food, drink, dancing and entertainment from Jump Street Band,” the invite says.Good luck getting in: Hamilton Place Strategies & Smithsonian, 6 to 9 p.m. at the Renwick, 1661 Pennsylvania Ave. NW. Invite-only. It’s usually hard to get on the list for events hosted by the Smithsonian, but going to a party at the Renwick might be worth a try. Sen. Cotton’s baby update Sen. Tom Cotton, R-Ark., welcomed his second child on Dec. 7. On Wednesday, he posted a Facebook update on his new son’s health. An update from Tom on Daniel Mark Cotton: https://t.co/eAcF6I1nHT pic.twitter.com/FafXlJOVY4 — Tom Cotton (@SenTomCotton) December 14, 2016var rcrdTwitter = 1;Happy birthday to… Sen. Mark Warner, D-Va., 62. What’s going on? Have any tips, announcements or Hill happenings? Send them to AlexGangitano@cqrollcall.com