Is Robert de niro a rebublician?

There is no publicly available information indicating Robert De Niro's political affiliation. He has not publicly declared his party affiliation or expressed strong support for any specific political party.

It's important to remember:

* Celebrities' political views are often not publicly known. While some celebrities openly discuss their political stances, many choose to keep their political views private.

* Speculation and rumors should be avoided. It's best to rely on credible sources and direct statements from the individual when determining their political beliefs.

Therefore, it's impossible to definitively say whether Robert De Niro is a Republican or not.