party congress
party conference BrE
political convention AmE

It held its first party conference on 1-2 June the same year.

At last week's party conference, the new leader got to work.

The results are to be announced at the party conference.

Following the 1929 election, a general party conference was held in March 1930.

She won the election for chairman at the party conference on 28 March 2009 with 98% of the vote.

We at this party conference would like to hear his explanation.

"Let me make just one promise," he said at his party conference.

At party conference, the leadership appeared to side with the second camp.

We wish she had included the party conferences question as well.

Some people said he was going to postpone it until after our party conference.