If one party is doing worse and the other is doing better that could be a sign that there's not much to it. They're generally going to have access to similar information/groups/etc. Otherwise a theory that one party is "better at corruption" vs "if you grab subsets of people at random some of the sets will be above-average" is dubiously-supported.

https://www.fa-mag.com/news/how-to-invest-like-members-of-co... Per this, KRUZ is lagging the S&P 500 YTD.

And in fact the case it makes is actually less convincing? "In total, 37 members of Congress beat the S&P 500 in 2023, according to stock and options data company Unusual Whales." 37 members of congress is a small subset.