Conversation so far:
What is known of bruce willis' political views?
In 1988, Bruce Willis and then-wife Demi Moore campaigned for Democratic Massachusetts Governor Michael Dukakis's Presidential bid.
What more is known of Governor Michael Dukakis's campaign for President?
Using the phenomenon termed the Massachusetts Miracle to promote his campaign, Michael Dukakis sought the Democratic Party nomination for President of the United States in 1988.
What followed Bruce Willis' involvement in Governor Dukakis's presidential campaign?
Four years later, Bruce Willis supported President George H. W. Bush for reelection.
Did Bruce Willis play any prominent role in politics?
In 1996, Bruce Willis declined to endorse Clinton's Republican opponent Bob Dole.
Why did Bruce Willis decline to endorse the politician Bob Dole?
Bob Dole had criticized Demi Moore for her role in the film Striptease. Bruce Willis was an invited speaker at the 2000 Republican National Convention.
Did Bruce Willis' support at the 2000 Republican National Convention receive audience approval?
In 2000, there was a lot of buzz generated that Bruce Willis would be introducing a video segment at that year's Republican convention, but he eventually backed out.

Question: Was he a member of the republican party?
Self-contained rewrite: Was Bruce Willis a member of the republican party?