No, that's not the Tea Partiers throwing a temper tantrum.
Kathy Sterner was getting fed up that her 6-year-old daughter was throwing a tantrum in her room. Thankfully, dad was there to provide a bit of comic relief: he lip-synched the kid's tantrum and mom captured the whole thing on video.
Oh, and for the record, Sterner said that her daughter is "not typically a beast child - she's actually a pretty awesome little kid who was having a rough day." Make that an Internet-famous little kid who just had her tantrum broadcast for the entire world to see.