He started the week saying sorry - now Nick Clegg says the Lib Dems have become one of the three parties of Government.
Under pressure in the polls, the deputy Prime Minister closed his conference with a rallying speech aimed at converting the doubters in the country and within his own party.
In the Anglia region, the Lib Dems have added a new MP to their tally at each of the past four General Elections.
But since they joined the coalition - nearly half their district councillors have lost their seats.
Our political correspondent Emma Hutchinson is at the conference in Brighton.