Who announced their Republican run in the 21st district after Chip Roy's retirement?

The announcement regarding a Republican run in the 21st district following Chip Roy's retirement was made by Mark Teixeira. This decision is significant because it showcases the engagement of former athletes in the political landscape, leveraging their public personas and platforms to pursue political office. Teixeira, known for his successful baseball career, signifies a trend where individuals from sports backgrounds transition into political roles, appealing to constituents with their visibility and community connections. The other names mentioned are not known for pursuing political office in this context, highlighting Teixeira's unique position as a candidate in this race.