He may not even be a party member.

这个人甚至可能不是党内成员。

youdao

I believe I will be a real Party member one day.

我相信有一天我会成为一名真正的党员。

youdao

The Party member in question must be informed of a decision regarding any disciplinary measure to be taken and of the facts on which it is based.

处分决定所依据的事实材料和处分决定必须同本人见面，听取本人说明情况和申辩。

youdao

It was essential to be a party member to get on in any official capacity in Iraq under the old regime, and the party ran neighbourhood spy cells as feared as the security services.

BBC: News | Who's who in post-Saddam Iraq

Government and business leaders have no requirement to be a particular political party member.

FORBES: Magazine Article

If Reid and the Democrats follow through on that promise, Lieberman would be a member of the party for all intents and purposes.

NPR: Sen. Lieberman's Future Democratic Relations