Depends how you define it and wether you’re defining it as intentionally en masse or as a byproduct of pure self interest regardless of anything else.

There’s plenty of examples, the most famous one in my opinion is that the popularity of legislation is irrelevant for passage, support by wealthy is. Similarly how the vast majority of people obtain political office is by and large courting the influence of wealthy donors (source - the amount of money being spent in politics and particularly dark money). Also how “lobbying” works even in the Supreme Court and pay to play by definition is politically battling the poor.