Are there any (nation) states in which major elections are publicly funded?

I’m doing some work on Buckley v. Valeo and I’m wondering if a country exists in which either the elections for the head of government or for members of the national legislature may only involve public funds.

In short, I want to know if there’s any country in which politicians all have the same (financial) chance of being elected.

I’m no expert, but I think Russia has that, or something very similar to that.