Insolence - an instance of insolent conduct or treatment
Insolent - insultingly contemptuous in speech or conduct
There's an ancient Hebrew word for it: Hutzpa!
How many time can Obama talk over and cut McCain while speaking? Junior - know your place and wait for your turn. How un-presidential, disrespectful of the occasion.
BTW: Here's what I'm doing while listening to Obama talk, I open Obama Soundboard and click on the word "bullshit" - while he's speaking. Very amusing. Obama talking over Obama.