You are right about broadcasting although I don't know exactly what it is I remember that button so I did the transaction again and hit broadcast.
error: {u'message': u'64: dust', u'code': -26}
whatever this means. It's not a huge deal, the account I'm trying to sweep has only 0.000004 BTC but still I'm trying to learn how to use the functions on Electrum
Maybe because 0.000004 is way too small to sweep?
Agree, the 'dust' part in that error message also makes me think that the amount is way to small so the transaction/sweep is being rejected.