This U.S. congress candidate does: https://aversa.vote/
There are many politicians that are bitcoin holders, but for the benefit of what they do or whom they are, they wouldn't want to come to the public announcing to everyone that they are into bitcoin, if not they may be the first target yo be attacked especially in countries where bitcoin adoption is not freely allowed or supported by its government, so those having bitcoin will rather prefer to be salient about it than making noise on what they have or the side they are.
But also we have to talk about those that take Bitcoin as for their salaries, I am sure we will have a handful of politicians who are taking they take home pay with bitcoin and I am sure that can be happening in countries where Bitcoin is already considered as legal tenders.
But why has it been that even amidst the politicians that want to adopt bitcoin or are already using bitcoin in their closet cannot come out boldly to declare their take on bitcoin and join in the fight for bitcoin adoption over other governments officials, maybe some are really afraid of loosing their reputation or trust because the overall people in government doesn't support bitcoin, but we can see alot of the businessmen putting an investment on bitcoin because they realized the needs of doing so, are we not in an era of people getting scared of declaring what they want because of general public opinions among those in power.