Tea Party favorite Cruz takes the seat filled by Kay Bailey Hutchison (R-Texas).

Cruz used social media extensively during his campaign, and Cruz’s social media presence is still flourishing post-election on Twitter and Facebook.

Although not all new members have official Twitter accounts yet, the 113th Congress could be the most socially networked yet. One returning member, Rep. Andy Harris (R-Md.), didn't want to be left out, and announced Friday he is joining Twitter for the first time.

Harris was one of the few congressional holdouts of the 112th Congress when it came to Twitter, but he has been active on Facebook.